Tutors Answer Your Questions about Miscellaneous Word Problems (FREE)
Question 934425: In physics, Ohm's law says that current through a wire, I, is directly proportional to voltage, V, and inversely proportional to resistance, R: I=V/R. It's also true that resistance is directly proportional to the length of the wire. We have a piece of wire. We pass 12 volts through this wire and measure 100 milliamps of current. If I cut the wire in half and pass 24 volts through it, how many milliamps of current will I measure?
Click here to see answer by TimothyLamb(4379)   |
Question 934550: Hi, I wasn't sure how to do this algebra question because my honors teacher didn't really explain this type of question well enough and I was wondering if you can help, ect.
So here's this one word problem; Eight times a number plus five times another number is -13. The sum of the two numbers is 1. What are the numbers?
It will really help if you answer this asap if you can. Its for elimination using multiplication.
Click here to see answer by josgarithmetic(39617) |
Question 934682: Hope you can help me! :)
When Neil was 2 miles upstream from camp on a canoe trip, he passed a log floating downstream with the current. He paddled upstream for 1 more hour and then returned to camp just as the log arrived. What was the rate of the current?
Click here to see answer by mananth(16946)  |
Question 934682: Hope you can help me! :)
When Neil was 2 miles upstream from camp on a canoe trip, he passed a log floating downstream with the current. He paddled upstream for 1 more hour and then returned to camp just as the log arrived. What was the rate of the current?
Click here to see answer by Alan3354(69443)  |
Question 934735: When 40 is added to the number of miles Karen ran last week, the result is the same as adding 10 to 4 times the number of miles she ran last week.
How many miles did Karen run last week? I don't have a clue on how to even start.
Please help.
Click here to see answer by ewatrrr(24785)  |
Question 934762: Using one engine of a ferry boat, it takes 6 h longer to cross a channel than it does using a second engine alone. with both engines operating, the ferryboat can make the crossing in 4 h. how long would it take each engine, working alone, to power the ferry boat across the channel?
Click here to see answer by TimothyLamb(4379) |
Question 934770: Can someone please help me!!
It took a small plane 2 h longer to fly 375 mi against the wind than it took the plane to fly the same distance with the wind. the rate of the wind was 25 mph. find the rate of the plane in calm air.
Click here to see answer by stanbon(75887) |
Question 934770: Can someone please help me!!
It took a small plane 2 h longer to fly 375 mi against the wind than it took the plane to fly the same distance with the wind. the rate of the wind was 25 mph. find the rate of the plane in calm air.
Click here to see answer by MathTherapy(10552)  |
Question 934771: Please help me!!
it took a small plane 2 h longer to fly 375 mi against the wind than it took the plane to fly the same distance with the wind. the rate of the wind was 25 mph. find the rate of the plane in calm air.
Click here to see answer by stanbon(75887) |
Question 934795: Question: Hamilton Path & Hamilton Circuits
A milk truck driver for a Farm Co. has to start at the plant, pick up milk on 10 different farms.
How many ways can the driver visit each farm and return to the plant?
Note: I created a graph with 10 vertices (A-J) for each farm
Click here to see answer by richard1234(7193)  |
Question 934950: The Royal Fruit Company produces two types of fruit drinks. The first type is 25% pure fruit juice, and the second type is 65% pure fruit juice. The company is attempting to produce a fruit drink that contains 55% pure fruit juice. How many pints of each of the two existing types of drink must be used to make 180 pints of a mixture that is 55% pure fruit juice?
Click here to see answer by josgarithmetic(39617) |
Question 935041: Hope you can help me. Thx for ur time! :D
Mr. Zerman went shopping. In the first store he spent half of his money plus an additional dollar. At t
he second store he spent half of his remaining money plus an additional dollar. This pattern continued until he left the fifth store with no money left. How much money did he have before he started shopping?
Click here to see answer by stanbon(75887) |
Question 935041: Hope you can help me. Thx for ur time! :D
Mr. Zerman went shopping. In the first store he spent half of his money plus an additional dollar. At t
he second store he spent half of his remaining money plus an additional dollar. This pattern continued until he left the fifth store with no money left. How much money did he have before he started shopping?
Click here to see answer by MathTherapy(10552) |
Question 935385: Use the clues given below to list the order in which Nancy, Amy, Ethel and Cindy line up in single file to board a school bus. Then match the girls with their heights,which are as follows:
If you round their heights to the nearest thents and arrange the numbers in ascending order,Ethel will be second.
Cindy is immediately behind the tallest girl in the line.
Amy is the shortest among them and she is not in front of Nancy
Click here to see answer by josgarithmetic(39617) |
Question 934263: 1)Does y vary directly, inversely or neither with x? If so, write the equation for the variation. (It's a chart but I'll type them for x and y)
x - -2, 3, 8
y- -2.8, 4.2, 11.2
2)Does y vary directly, inversely or neither with x? If so, write the equation for the variation.
x- 4, 5, 11
y- 3, 4.5, 13.5.
Click here to see answer by Theo(13342)  |
Question 935429: challenge:
William and Stephanie are playing a rather dangerous game of catch on the rooftops of skyscrapers in downtown Chicago. William is preparing to throw a tennis ball off the roof of the John Hancock Center,1130 feet above street level Stephanie is waiting to catch the ball on the rooftop of the neighboring Water Tower Place,830 feet above street level. William throws the ball,which leaves his hand with an upward velocity of 46 feet per second, and travels in a parabolic path. Stephanie catches the ball exactly 6.0 seconds after it is thrown.
complete the following tasks:
1-Create a quadratic function describing the height of the ball above street level with respect to time t.
2- After how many seconds will the ball reach its maximum height above street level?
3- Find the maximum height of the ball above street level .Round to the nearest foot.
4- Stephanie uses a machine to launch the ball back up to William ,who catches it exactly 6.0 seconds after it is launched. What is the upward velocity in feet per second of the ball as it leaves the launcher? thank you so much.
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 935446: callenge:hard
A shoe maker sells a new model of athletic shoe for $90. On average, the store
sells 45 pairs of these shoes each week. Jason, the sale manager, estimates that
he will sell 4 additional pairs of shoes each week for every $5 reduction in the
price .Find the following
1- A quadratic function modeling the store’s average weekly revenue from the
sale of these shoes as related to reduction in price.
2- The range of price which would allow he store to maintain or increase its
current weekly revenue from these shoes.
3- The maximum amount by which the store can increase its revenue from these
shoes each week . Round of to the nearest whole dollar.
Click here to see answer by DrBeeee(684) |
Question 935484: for the lovers of math:very very difficult algebra question:
A company manufactures high-powered fountains that can be used to create elaborate water shows set to light and music.The company makes three models of
fountains, each of which can launch a vertical stream of water to a different height, as indicated in the table below. Model A Model B Model C height 77 100 240 time to fall (s) 2.194, ----, ---- initial velocity 70.2 , ----, 123.9 complete the following tasks, filling in the missing values in the table as you find them: Find the time water would take to fall from each height in the table back to its starting level. Find the initial upward velocity required for fountain B to launch the water to its maximum height Create a function that will give you the minimum initial upward velocity ,v ,required to launch water to any given height , h. thank you
Click here to see answer by stanbon(75887) |
Question 935431: challenge:
Challenging problems : please help
Major League Baseball is putting an expansion team on Mars. Because of Mars’
Lower gravity, baseballs travel farther and higher than they do on Earth, and the
domed stadium that will house the new Mars Dusties franchise must reflect this.
On Earth, the distance from home plate to center field wall is 400 feet, and
a baseball hit at a 45 degrees angle with a velocity of 112.72 ft/sec will hit the
base of the center field wall. The path of this baseball can be modeled by two
quadratic equations:
Y= -g(t^2)/2 + 79.705t +3 and y = - g (x^2)/12705.8 + x +3
The first equation gives the height of the ball ,y, in feet with respect to time ,t, in
seconds, while the second gives the height with respect to horizontal position
,x, in feet. On Earth, g=32, but on Mars, g = 12.17.
1-If the baseball is hit with the same angle and velocity on Mars as on Earth, how
far from home plate should the center field wall will be for the ball to hit its base
(to the nearest foot)? Hint :use the Quadratic Formula.
2- The stadium designers want the dome to have 50 feet of additional clearance
Above the maximum height of the baseball. What is the height of the dome?
3-Is the increased distance to be covered in the outfield approximately proportional
to the increased hang time of the ball? For example, does doubling the distance traveled
by the ball also doubled the hang time of the ball? Justify your answer.
Click here to see answer by brysca(112)  |
Question 935618: a stadium has maximum capacity of 1800 seats.
seating arrangement is to be done such that there must be a vacant seat after 2 consecutive occupied seats.
find the maximum number of occupied seats.
Click here to see answer by Theo(13342) |
Question 935758: Jane averaged her five equally weighted test grades and got 60%. This was wrong because she had entered one grade incorrectly. That incorrect score should have been entered as 80%. If she had used the 80%, her correct average for the five tests would have been 70%. What percent did she incorrectly enter instead of 80%?
Click here to see answer by stanbon(75887) |
Question 935758: Jane averaged her five equally weighted test grades and got 60%. This was wrong because she had entered one grade incorrectly. That incorrect score should have been entered as 80%. If she had used the 80%, her correct average for the five tests would have been 70%. What percent did she incorrectly enter instead of 80%?
Click here to see answer by TimothyLamb(4379) |
Question 935749: When standing upright, Gary knows his eyes are 6 feet above ground level. To determine the depth of a well, he stands in the position shown. Which expression may be used ti determine the volume of the well?
(He is standing 2 feet away from the well and he is looking down at the well creating a right triangle and the well is 6 feet wide)
A. π(6)^2(18)
B. π(3)^2(9)
C. π(3)^2(12)
D. π(3)^2(18)
Click here to see answer by josgarithmetic(39617) |
Question 935749: When standing upright, Gary knows his eyes are 6 feet above ground level. To determine the depth of a well, he stands in the position shown. Which expression may be used ti determine the volume of the well?
(He is standing 2 feet away from the well and he is looking down at the well creating a right triangle and the well is 6 feet wide)
A. π(6)^2(18)
B. π(3)^2(9)
C. π(3)^2(12)
D. π(3)^2(18)
Click here to see answer by MathTherapy(10552) |
Question 935832: 1. The driveway in front of my house is 20 feet wide and 100 feet
long. If asphalt is ordered in a whole number of cubic yards, how
many cubic yards of asphalt must be ordered to pave my driveway
with a layer of asphalt three inches thick?
2. In Euclidville, 80% of the families live west of the freeway and the other 20% live east of the freeway. The mean annual income of the families living west of the freeway is $45,000, and the mean annual income of the families living east of the freeway is $40,000. What is the mean annual income for all the families in Euclidville?
Click here to see answer by ankor@dixie-net.com(22740) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690
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