Tutors Answer Your Questions about Miscellaneous Word Problems (FREE)
Question 268932: The bottom, side, and front areas of a rectangular box are known. The product of these areas is equal to
(A) The volume of the box (B) The square root of the volume
(C) Twice the volume (D) The square of the volume. (E) None of these.
Click here to see answer by Alan3354(69443)  |
Question 268978: Ozzy goes to bed at 8 pm while Kristen & Sean go to bed at 11 pm. If Ozzy sleeps twice as long as Kristen and Sean sleeps 6 hours more than Kristen and Sean and Ozzy sleep the same number of hours - what time does Kristen get up?
Click here to see answer by drk(1908) |
Question 269027: One serving of DietMuck is 2/3 of a cup. Jane wants to eat 2/3 of a serving of DietMuck. What fraction of a cup of DietMuck should Jane eat?
a. Draw pictures to help you solve this problem
b. In solving the problem, how does 2/3 appear in a different form?
c. What are the different wholes associated with the fractions in this problem? In other words, for each fraction in this problem, and its solution, what is the fraction "of"?
Click here to see answer by stanbon(75887) |
Question 269162: Three friends jog regularly in a park: Anna jogs every 10 days, Barbara jogs every
15 days, and Jo jogs every 14 days. One Sunday they happen to jog together.
After how many days will the three friends jog together again?
(A)150 (B) 210 (C) 350 (D) 420 (E) Never
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 269293: A certain model of car with a normal engine costs $11,000 to purchase and 22 cents a mile to operate. The same car with a fuel-injection engine costs $11,300 to purchase but only 20 cents a mile to operate. After how many mile does the total cost of both cars become the same?
Click here to see answer by rfer(16322) |
Question 269354: The number of revolutions of a wheel, with fixed center and with an outside diameter of 6 m, required to cause a point on the rim to go one km is
(A)880 (B) 440/pi (C) 500/3pi (D) 440 pi (E) None of these.
Click here to see answer by mananth(16946)  |
Question 269355: A large watermelon weighs 20 kg with 98% of its weight being water. It is left to stand in the sun and some of the water evaporates so that now only 95% of its weight is water. What is its reduced weight?
(A)17 kg (B) 19.4 kg (C) 10 kg (D) 8 kg (E) None of these.
Click here to see answer by stanbon(75887) |
Question 269377: In a special local election, one candidate received 288 votes less than twice the number of votes of the opponent. How many votes did each candidate receive if the total number of votes in the election is 136,395?
Thank you for your help.
Click here to see answer by stanbon(75887) |
Question 269377: In a special local election, one candidate received 288 votes less than twice the number of votes of the opponent. How many votes did each candidate receive if the total number of votes in the election is 136,395?
Thank you for your help.
Click here to see answer by mananth(16946)  |
Question 269399: On the box of a model car, the scale given is 1 inch: 2 feet.
A) If the tire on the model is 2 inches, how big is the actual tire of the car?
B) If the windshield is 4.5 inches, how big is the acual windshield?
Click here to see answer by JBarnum(2146)  |
Question 269374: A farmer spends $4,000 to obtain 100 head of livestock.Prices are: calves – $120 each; lambs – $50 each; piglets – $25 each. If he purchased at least one animal of each type and fewer than 10 calves, how many lambs did he buy?
(1) 44 (2) 46 (3) 48 (4) 50 (5) None of the above
Click here to see answer by ptaylor(2198)  |
Question 269551: Hello Guys,
I think I got it can you please check it for me here is the question and the answer.
A mini license plate for a toy car must consist of a letter followed by two numbers. Each letter must be an R, U or N. Each number must be a 2 or 6. Repetition of digits is permitted.
Thank you,
1.Use the counting principle to determine the number of points in the sample space.
2.Construct a tree diagram to represent this situation and submit it to the week 5, assignment 3 dropbox.
3.List the sample space.
4.Determine the exact probability of creating a mini license plate with an R. Give solution exactly in reduced fraction form.
HERE IS MY ANSWER:
First our license plate must be in the form of
# - L - L,
or,
number - letter - letter.
we have 2 choices for the numbers, 2 or 6
we have 3 choices for the letters r - u - n.
repetition is allowed: So there is a second 3 choices for letters r - u - n
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1. Use the counting principle to determine the number of points in the sample space.
ANSWER: The counting principal is all about multiplying the number of ways one event occurs x the number of ways a second event occurs x the number of ways a third event occurs and so on. In our case we have 2 number choices and 3 letter choices, but two times.
2 x 3 x 3 = 18.
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2. Construct a tree diagram to represent this situation.
ANSWER:
step 1 - write a 2 and below it with a little space write a 6
step 2 - from the 2 draw 3 arrows and next to the end of these write R,U, N
step 3 - next to each of the letters draw another 3 arrows and write the letters again for R,U,N
step 4 - from the 6 draw 3 arrows and next to the end of these write R,U,N
step 5 - next to each of the letters draw another 3 arrows and write the letters again for R,U,N
---
3. List the sample space.
ANSWER: this is pretty straight forward from the tree diagram. we get
2aa, 2ab, 2ac, 2ba, 2bb, 2bc, 2ca, 2cb, 2cc,
6aa, 6ab, 6ac, 6ba, 6bb, 6bc, 6ca, 6cb, 6cc.
2ab plate is different from 2ba plate
---
4. Determine the EXACT probability of creating a mini license plate with a R. Give the solution in reduced fraction form.
ANSWER: 2ac, 2bc, 2cc, 2ca, 2cb, 6ac, 6bc, 6cc, 6ca, 6cb
"with a R" means to me one or two R"s in any order.
P(R) = 10/18 = 5/9.
Click here to see answer by Edwin McCravy(20055)  |
Question 269618: a rectangular cutting board is 6 inches longer than it is wide. If the area of the cutting board is 216 square inches, find the length and the width.
This is my attempt to the problem but then I am stuck.
A=lw
216=6(L) * w
Click here to see answer by Earlsdon(6294) |
Question 269651: At a point on the ground 80ft from the base of a tree, the distance to the top of the tree is 11ft more than 2 times the height of the tree. Find the height of the tree. (Simplify your answer. Round to the nearest foot as needed.)
Click here to see answer by mananth(16946)  |
Question 269707: A person is standing on a staircase. He walks down 4 steps, up 3 steps, down 6 steps, up 2 steps,up 9 steps, and down 2 steps. Where is he standing in relation to the step on which he started?
(A) 2 steps above (B) 1 step above (C) The same place (D) 1 step below (E) None of these.
Click here to see answer by mananth(16946)  |
Question 269822: Please help me solve the following word problem: A picture frame measures 12 centimeters by 20 centimeters. 48 cm^2 of the picture shows inside the frame. Find the length and width of the inside of the frame.
Click here to see answer by drk(1908) |
Question 269971: Three individuals form a partnership and agree to divide the profits equally. X invests
$9,000, Y invests $7,000, Z invests $4,000. If the profits are $4,800, how much less
does x receive compared to having the profits divided in proportion to the amounts
invested by X, Y, and Z?
Click here to see answer by stanbon(75887) |
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