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Question 200591: If the cost,in dollars, of a box of my favorite cereal is the same as the number of different values of x which satisfy ( x square minus nine ) to the power of three equal to zero, then a box of this cereal costs how much ?
Click here to see answer by Alan3354(30993)

Question 200679: two angles are complementary if the sum of their measures 90 degrees. Themeasure of the first angle is 5 degrees less than 4 times the second angle. What is the measure of the first angle.
Click here to see answer by nerdybill(6958)

Question 200684: Three-fourths of the numbers in any data set will be larger than the
A) third quartile B) fourth quartile C) median D) midrange

Click here to see answer by rfer(12657)

Question 200495: Winter wheat. While finding the amount of seed needed
to plant his three square wheat fields, Hank observed that
the side of one field was 1 kilometer longer than the side
of the smallest field and that the side of the largest field
was 3 kilometers longer than the side of the smallest field.
If the total area of the three fields is 38 square kilometers,
then what is the area of each field?
Click here to see answer by Earlsdon(6287)

Question 200739: Can someone please help me ASAP. I have in the process of relocating and have lost my book and this is my last test with no resources.
1. (2 pts) The objective of statistics is best described as:
A) To make inferences about a sample based on information we get from a population
B) To make inferences about a population based on information we get from a sample taken from the population
C) To use population mean,  as an estimate of the sample mean,
D) To make inferences about a sample with a high degree of reliability
2. (5 pts) Construct a frequency distribution of the ages that 30 randomly selected smokers started smoking:
25 26 25 17 16 16 14 17 21 16
15 18 17 15 15 19 16 17 23 15
19 17 16 26 16 25 16 17 22 24
14=1
15=4
16=7
17=6
18=1
19=2
21=1
22=1
23=1
24=1
25=3
26=2

3. (2 pts) Three-fourths of the numbers in any data set will be larger than the
A) third quartile B) fourth quartile C) median D) midrange
4. (2 pts) The number that appears most frequently in a data set is the
A) mean B) midrange C) median D) mode
5. (2 pts) Half of the scores in any data set are below the
A) first quartile B) second quartile C) third quartile D) median
6. (6 pts) Find the mean, median, and mode for the following set of data which shows the number of pages per article in a random sample of magazine articles.
6 7 5 4 7 5 5 7
8 5 3 6 8 9 5
7. (8 pts) Construct a histogram and a frequency polygon for the following frequency distribution
Miles Number of Commuters
Class Frequency
0 - 20 7
21 - 40 3
41 - 60 12
61 - 80 10
81 –100 4

Click here to see answer by rfer(12657)

Question 200811: basketballs are stacked in a pyramid with a square base. each basketball rests on four basketballs below it except in base . how many basketballs would be in the bottom layer in a pyramid with a total of 91 basketballs ?
Click here to see answer by vleith(2825)

Question 200817: It takes Steve 3 hrs longer to paint a floor than it takes Paul. When working together, it takes them 2 hours. How long would each take to do the job alone?
Click here to see answer by nerdybill(6958)

Question 200818: The moving sidewalk at Chicago's airport moves 1.8 ft/sec. Walking on the moving sidewalk, Joe travels 105 ft forward in the time it takes to travel 51 ft. in the opposite direction. How fast would Joe be walking on a nonmoving sidewalk?
Click here to see answer by ankor@dixie-net.com(15649)

Question 200819: The weight M of an object on Mars varies directly as its weight E on Earth. A person who weighs 95 lbs on Earth weighs 38 lbs on Mars. How much would a 1-- lb person weight on Mars?
Click here to see answer by ankor@dixie-net.com(15649)

Question 200900: Suppose that a board 20 feet long is cut into two pieces. Four times the length of the shorter piece is 4 feet less than three times the length of the longer piece. Find the length of each piece.
Click here to see answer by RAY100(1637)

Question 200925: I have a total dollar amount of 23,766. I have a total # of hours of 123.
I need to know the rates per hour for the following:
24 hrs
31
4
4
4
28
28
=123 hours =$23,766.00
Click here to see answer by rfer(12657)

Question 200949: The sales rep informs you that there are two floor plans still available, and that there are a total of 56 houses available. Use x to represent floor plan #1 and y to represent floor plan #2. Write an equation that illustrates the situation.
Click here to see answer by Alan3354(30993)

Question 200987: LOUDNESS OF SOUND. The loudness L of a sound (measured in decibels, dB) is inversely proportional to the square of the distance D from the source of the sound level of 70 db; how loud is the lawn mower when the person is 100ft. away?
Click here to see answer by stanbon(57307)

Question 201059: Leslie left home and ran to the lake at 10 mi/h. She ran back home at 8 mi/h. If the entire trip took 27 minutes, how far did she run in all?
Thanks for your help.
Click here to see answer by rfer(12657)

Question 201071: A rectangle has length three times its width. The perimeter of the rectangle is 56 inches. Find the length of the rectangle.
Click here to see answer by checkley77(12569)

Question 201095: if the radius of a circle is increase by 4 units, its original area is multiplied by 2. Find the original radius.
Click here to see answer by Earlsdon(6287)

Question 201095: if the radius of a circle is increase by 4 units, its original area is multiplied by 2. Find the original radius.
Click here to see answer by Alan3354(30993)

Question 201096: The student center contain 4800 square ft. and its length is 20 ft. longer than its width. What are the dimensions?
Click here to see answer by Earlsdon(6287)

Question 201098: You decide to tile your kitchen with tile. The width of the room is 5 feet shorter than the length. If you have to buy 360 one square foot tiles to cover the room, what are the dimensions of the kitchen?
Click here to see answer by josmiceli(9669)

Question 201094: The area fo a rectangle is 66ft squared and the diagonal of the rectangle is square root of 157 ft. What are the dimensions of the rectangle.
Click here to see answer by nerdybill(6958)

Question 201093: You drive to houston and back in 8 hours. Suppose your returning speed is 10mph slower than your going speed and that the total trip is 300 miles. What was your speed going to houston?
Click here to see answer by stanbon(57307)

Question 201089: Filling a tank. A water tank has an inlet pipe and a drain
pipe. A full tank can be emptied in 30 minutes if the drain
is opened and an empty tank can be filled in 45 minutes
with the inlet pipe opened. If both pipes are accidentally
opened when the tank is full, then how long will it take to
empty the tank?
Click here to see answer by josmiceli(9669)

Question 201088: Big plane. A six-passenger plane cruises at 180 mph in
calm air. If the plane flies 7 miles with the wind in the
same amount of time as it flies 5 miles against the wind,
then what is the wind speed?
Click here to see answer by josmiceli(9669)

Question 201087: Upstream, downstream. Junior’s boat will go 15 miles per
hour in still water. If he can go 12 miles downstream in the
same amount of time as it takes to go 9 miles upstream,
then what is the speed of the current?
Click here to see answer by josmiceli(9669)

Question 201086: Bear population. To estimate the size of the bear
population on the Keweenaw Peninsula, conservationists
captured, tagged, and released 50 bears. One year later, a
random sample of 100 bears included only 2 tagged bears.
What is the conservationist’s estimate of the size of the
bear population?
Click here to see answer by checkley77(12569)

Question 201179: To save for college tuition, the parents of a preschooler invest $5000 in a bond that earns 6% annual interest compounded monthly. In approximately how many years will the investment be worth $15,000?

Click here to see answer by Alan3354(30993)

Question 201244: You live in a square room. If you increase the width of the room by 6 feet, the area is increase 4 times. What was the original width of the room?
Click here to see answer by rbkumar_msc(2)

Question 201243: The sum of two numbers is 13 and the differene of the reciprocals of the numbers is 3/40. Determine the two numbers.
Click here to see answer by Alan3354(30993)

Question 201290: five jars of candy contains a total of 1000 pieces of candy. each jar contains eight more pieces than the previous one . how many pieces are in the last jar ?
Click here to see answer by rfer(12657)

Question 201348: Nicole opened her math book and multiplied the two page numbers that were
facing her. Their product was 40200. What was the smaller page number
facing her?
Click here to see answer by rfer(12657)

Question 201347: Spencer makes 9 out of 13 shots in the first half of a basketball game.
How many consecutive shots must he make in the second half of the game to
raise his percentage to 96%?
Click here to see answer by stanbon(57307)

Question 201398: If 6 mathletes can eat 20 Cheetos in 6 seconds, how many seconds are
needed for 10 mathletes to eat 10 Cheetos?

Click here to see answer by Alan3354(30993)

Question 201433: A coffee merchant combines coffee costing $5.50 per pound with coffee costing $3.00 per pound. How many pounds of each should be used to make 40 lb of a blend costing $4 per pound?
Click here to see answer by Alan3354(30993)

Question 201461: A butcher has some hamburger that is 20% fat and some hamburger that is 12% fat. How many pounds of each should be mixed to make 80 lb of hamburger that is 17% fat?
Click here to see answer by checkley77(12569)

Question 201516: asif read 3/5 pages of book and 4/5 of the remaining pages .if he has still to read 28 pages,find the number of pages in the book.
Click here to see answer by josmiceli(9669)

Question 201520: One leg of a right triangle is 1 ft long and the hypotenuse measure 2 ft long. Find the length of the other leg.
Click here to see answer by rfer(12657)

Question 201527: Area of a triangle. Find the exact area of a triangle with
a base of sqrt30 meters and a height of sqrt6 meters.
Click here to see answer by rfer(12657)

Question 201527: Area of a triangle. Find the exact area of a triangle with
a base of sqrt30 meters and a height of sqrt6 meters.
Click here to see answer by jsmallt9(3296)

Question 201529: I would really appreciate your help solving this problem
A machine shop has two machines that can mill a certain bras plate. One machine has a set up cost of $500 and a cost per plate of $2, and the other machine has a set up cost of $800 and a cost per plate of $1. How many plates should be manufactured if the cost is to be the same using either machine?
Thank you
Jmolina
Click here to see answer by rfer(12657)

Question 201526: Top bond fund. An investment of $10,000 in the
Emerging Country Debt Fund in 2001 was worth $24,780
in 2006 (www.money.com). Use the formula from the
previous exercise to find the 5-year average annual
return.
The formula is :
r=(S/P)^1/n -1
Click here to see answer by rfer(12657)

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