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Question 196272: A solution containing 30% insecticide is to be mixed with a solution of 50% insecticide to make a 200L solution containing 42% insecticide. How much of solutoin is used
Click here to see answer by solver91311(24713)

Question 196578: A number that describe numerical data is a ?
Click here to see answer by stanbon(75887)

Question 196552: Tom's Dad sowed some tomato seed in February. He gave Tom one of the tomato plants in a pot. At the beginning of May Tom put his tomato plant outside. On the same day he sowed a bean in another pot. Ten days later the bean plant was just 1 centimetre above the soil surface. Tom measured his tomato plant which was already 38 centimetres tall. Each evening Tom measured his two plants. On the evening of the next day the little bean plant had grown another 2 centimetres so it was 3 centimetres high. Each day it continued to grow double the amont it had grown the day before. The tomato plant grew at a steady 5 centimetres a day. After how many days were the two plants the same height when Tom measured them in the evening? How high were they?
Click here to see answer by ankor@dixie-net.com(22740)

Question 196734: Bob wants to have concrete driveway in front of his house. The driveway will measure 58 2/3 feet long and 18 �feet wide; and will be 3/4 foot thick. How many cubic yards of cement will be needed for the driveway? Round your answer to the nearest cubic yard. [1 cubic yd = 27 cubic feet]
Click here to see answer by christo(3)

Question 197050: You have $160 dollars and save $7 per week.Your friend has $210 dollars and saves $5 dollars a week.In how many weeks will they have saved the same?
Click here to see answer by nerdybill(7384)

Question 197281: One horse costs $1000, one pig costs $200, and one chicken costs only $10. A farmer buys 28 animals for $8500. He bought twice as many pigs as horses. How many of each animal did he buy?
Click here to see answer by user_dude2008(1862)

Question 197373: A car radiator is filled with 5 liters of 25% antifreeze solution. How many liters must be drawn off and replaced by a 75% antifreeze solution to leave the radiator filled with a 55% anitfreeze solution?
Click here to see answer by ankor@dixie-net.com(22740)

Question 197731: A juice drink manufacturer has found mixing pineapple juice concentrate and fresh squeezed orange juice is the most cost effective way to produce its breakfast beverage. The pineapple juice comes in two concentrated forms, 22% and 60% pineapple juice, which must be combined into a solution that can be mixed with the orange juice. If 60 gallons of 22% juice is used, how many gallons of the 60% juice must be used to obtain a 50% pineapple juice solution?
Click here to see answer by stanbon(75887)

Question 197840: A solution containing 28% acid is to be mixed with a solution containing 40% acid to make a 300 L solution which contains 36% acid. How of each solution should be used to make the desired mixture?
Click here to see answer by checkley77(12844)

Question 198038: How much soil containing 45% sand do you need to add to 1 ft^3 of soil containing 15% sand in order to make a soil containing 35% sand?
Click here to see answer by solver91311(24713)

Question 198051: 9 gallons of a sugar solution was mixed with 6 gallons of a 90% sugar solution to make a 84% sugar solution. FInd the percent concentration of the first solution.
Click here to see answer by ankor@dixie-net.com(22740)

Question 198077: This is what I have for this problem but I cannot figure out (A′ U C′) ∩ B ′. Can someone please help me!!!!!!! Thank you!!!!!!

6. (3 pts) Given U = {l, m, n, o, p, q, r, s, t, u, v, w}, A = {l, o, p, q, s, t}, B = {n, o, r, s, v, w},
and C = {l, m, n, q, r, t}, find (A′ U C′) ∩ B ′.

A', list the elements of U that are NOT in A.
A� = {m, n, r, u, v, w}
B', list the elements of U that are NOT in B.
B� = {l, m, p, q, t, u}
B�, list the elements of U that are NOT in C.
C� = {o, p, s, u, v, w}

Click here to see answer by stanbon(75887)

Question 198078: Brand X sells 21 oz. bags of mixed nuts that
contain 29% peanuts. To make their
product they combine Brand A mixed nuts
which contain 35% peanuts and Brand B
mixed nuts which contain 25% peanuts.
How much of each do they need to use?
Click here to see answer by josmiceli(19441)

Question 198073: How much soil containing 45% sand do you need
to add to 1 ft� of soil containing 15% sand in order
to make a soil containing 35% sand?
Click here to see answer by josmiceli(19441)

Question 198072: How much soil containing 45% sand do you need
to add to 1 ft� of soil containing 15% sand in order
to make a soil containing 35% sand?
Click here to see answer by solver91311(24713)

Question 198096: I had to write out what was in the diagram because it wouldn't transfer onto here. Can someone please help me with this A.S.A.P. I haven't been able to figure this out and I don't know what to do. I greatly appreciate the help. Thank You!!!!!!!!!

4.(4 pts) Given the diagram below, find a) P ∩ Q and b) P U Q

Inside the rectangle are two circles. The letters in the rectangle are U in top left corner, P outside the left circle, Q outside the right circle, and H bottom right of the right circle. The letters A and D in the left circle and B and E in the middle of both circles. C, F, G in the right circle.
Click here to see answer by vleith(2983)

Question 198270: Lemon drops worth $3.80 per pound are to be mixed with jelly beans that cost $2.40 per pound to make a mixture worth $2.96 per pound. How many pounds of each candy should be used?
Click here to see answer by josmiceli(19441)

Question 198312: Lemon drops worth $3.80 per pound are to be mixed with jelly beans that cost $2.40 per pound to make 100 pounds of a mixture worth $2.96 per pound. How many pounds of each candy should be used?:
Click here to see answer by stanbon(75887)

Question 198342: How much 151 Rum, which is 75.5% alcohol needs to be mixed with Rum 80, which is 40% alcohol to obtain a 1000ml 65% alcohol solution?
Click here to see answer by stanbon(75887)

Question 198449: How many pounds of refined sugar costing $1.35 a pound must be added to 120 pounds of another sugar brand of refined sugar costing $1.75 per pound to make a misture costing $1.50 a pound?
Click here to see answer by ankor@dixie-net.com(22740)

Question 198481: please I need your assistant again i really don't understands this please help. asap.

For sets A and B, determine whether A = B, A is a subset of B, or B is a subset of A

A = {x| x є N and 13 < x < 20}
B = {14, 15, 16, 17, 18}

Click here to see answer by stanbon(75887)

Question 198482: My head is spinning I really don't know this please show how thank you so much.

Set K contains 50 elements, set J contains 66 elements, and 14 elements are common to both sets. Find n (K U J).

Click here to see answer by stanbon(75887)

Question 198485: Thank you so much this teacher is picking me a part with these problem please help.

) In a survey of 100 consumers, 33 indicated that they were going to buy a new car, 18 said they were going to buy a new refrigerator, and 34 said they were going to buy a new washer. Of these, 7 were going to buy both a car and a refrigerator, 15 were going to buy a car and a washer, and 9 were going to buy a washer and a refrigerator. Three consumers indicated that they were going to buy all three items.
Construct a Venn diagram, label your diagram clearly.
Use your diagram to answer the following questions:
(a) How many were going to buy only a car?
(b) How many were going to buy only a washer?
(c) How many were going to buy only a refrigerator
(d) How many were going to buy a car and a washer but not a refrigerator?
(e) How many were going to buy none of these items

thank you so much
Click here to see answer by josmiceli(19441)

Question 198480: please I need you help asap.
Express the following in set builder notation:
Z = {9, 10, 11, 12, 13, 14, 15, 16, 17}

thank you so much
Click here to see answer by stanbon(75887)

Question 198484: please help thank so much.

A survey of a group of people produced the following results: there were 35 people with brown eyes and 24 people with blonde hair. If 14 people had both brown eyes and blonde hair and 27 people had neither, how many people were interviewed?

Click here to see answer by Edwin McCravy(20056)

Question 198580: Find the cost of liter of solution when you have 70L of cranberry juice that costs $1.20 and 130L of apple juice that costs $0.80.
Click here to see answer by ankor@dixie-net.com(22740)

Question 198752: 9 Ibs. of mixed nuts containing 55% peanutes were mixed with 6Ibs of another kind of mixed nuts that contain 40% peanuts. What percent of the new mixture is peanuts?
Click here to see answer by josmiceli(19441)

Question 198832: How much soil containing 45% sand do you need to add 1ft of soil containing 15% sand in order to make a soil containing 35% sand?
Click here to see answer by jim_thompson5910(35256)

Question 198833: How many mg of a metal containing 45% nickel must be combined with 6 mg of pure nickel to form an alloy containing 78% nickel?
Click here to see answer by josmiceli(19441)

Question 199533: How much water should be added to 5 gallons of pure juice to make an orange juice mixture that is 90% juice?
Click here to see answer by nerdybill(7384)

Question 199624: 10k gold ----------------42%
14k gold ----------------58%
18k gold ----------------75%
22k gold ----------------92%
24k gold ----------------100%
How many grams of 22k gold must be mixed with 5 grams of 14k gold to produce 18k gold?

Click here to see answer by ankor@dixie-net.com(22740)

Question 199627: How many ounces of water should a chemist remove from 20 ounces of a 20% sulfuric acid solution to increase it to a 40% sulfuric acid solution? Water is removed by boiling.

Click here to see answer by nerdybill(7384)

Question 199622: Tom Kline mixed 60lbs of sunflower seeds at $3.00 per lb with 40 lbs of daisy seeds at $2.00 per pound to produce a wild flower mix. What is the unit price of the mix?
Click here to see answer by rfer(16322)

Question 199857: Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 miles per hour and train B is traveling at 120 miles per hour. Train A passes a station at 2:25 A.M.. If train B passes the same station at 2:40 A.M. at what time will train B catch up to train A?
When will train B catch up to train A?
Click here to see answer by ankor@dixie-net.com(22740)

Question 199814: If x=3 then (4x)^2-3=?
If zx+1=7 then x=?
If x+18-23 then x=?
If 2(x+1)=8 then x=?
If 9n<10 then n could be?
5x(14+8) divided by 2=?
-x+1<3 then x could equal?
Click here to see answer by ankor@dixie-net.com(22740)

Question 199861: Can someone explain this to me please help ASAP!!!!!!!!!!!!!
During the last hour, a telemarketer dialed 25 numbers and reached 7 busy signals, 3 answering machines, and 15 people. Use this information to determine the empirical probability that the next call will be answered in person

thank you
Click here to see answer by checkley77(12844)

Question 199867: I need help plese anyone please!!!!!!!!!!! Terrie

The odds against Thunderbolt winning the Birmingham Derby are 11:3. Find the probability that Thunderbolt wins.
Click here to see answer by edjones(8007)

Question 199862: I'm calling on your help once again not good word problem please please ASAP!!!!! step by step please

If you roll a die many times, what would you expect to be the relative frequency of rolling a number less than 5?

Click here to see answer by scott8148(6628)

Question 199976: How much water should be added to 1 gallon of pure antifreeze to obtain a solution that is 60% antifreeze?
Click here to see answer by ankor@dixie-net.com(22740)

Question 199875: I missed this one on my exam as well please show your support T-Aun

At an annual flower show, 7 different entries are to be arranged in a row.
a) How many different arrangements of the entries are possible?
b) If the owners of the 1st, 2nd, and 3rd place entries will be awarded prizes of $100, $50, and $25 respectively, how many ways can the prizes be awarded?
Click here to see answer by edjones(8007)

Question 199874: Can you explain this problem to me your help is needed thank you T-Aun
The results of a survey for an airline are shown below
Traveler Male Female Total
Business 47 72 119
Vacation 71 64 135
Total 118 136 254
Use the chart to find the probability that the traveler was
a) male
b) on vacation given the traveler was female
c) male given the traveler was on vacation

Click here to see answer by ilana(307)

Question 200188: I went over this problem three times and the teacher is telling me it is still wrong the # 199874 for this question please help ASAP!!!!!!!! thank you T-Aun
Click here to see answer by rfer(16322)

Question 200257: A chemist has prepared two acid solutions, one of which is 4% acid by volume, another 11% acid. How many cubic centimeters of each should the chemist mix together to obtain 50cm3 of 6.24% solution?
Click here to see answer by checkley77(12844)

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