439 Answered Questions for the topic Pre-Algebra

Pre Algebra Math

02/05/15

Exchange Rates
In 2003, the exchange rate between the United States and Canada was about 3 Canadian dollars to 2 U.S. dollars. Cindy had 78 U.S. dollars to exchange when she visited Canada. How many Canadian... more
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02/05/15

Help #3 Volume of a cone: Exact answers in terms of pi
Find the volume of a cone with a base radius of 4ft and a height of 9ft. Write the exact volume in terms of pi , and be sure to include the correct unit in your answer.
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Pre Algebra Math

02/04/15

WORD PROBLEM
One afternoon, you read 24 pages of a novel in 30 minutes. Another afternoon, you read 33 pages in 45 minutes. How can you decide whether you read at the same rate or at different rates on the two... more
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Pre Algebra Math

02/04/15

Word problem
A restaurant sells drinks in 3 sizes of cups: small, medium, and large. The small cup costs $.89 and holds 9 ounces. The medium cup costs $1.29 and holds 12 ounces. The large cup costs $1.59 and... more
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Pre Algebra Math

02/04/15

Clearing decimals
-2.3x - 1.276 = 6.728
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Pre Algebra Math Word Problem

02/04/15

Word problem
Your car's fuel efficiency is 24.2 miles per gallon. You are going on a trip this weekend and will be driving a total of 272 1/4 miles. If gasoline costs $1.489 per gallon, about how much will the... more
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02/04/15

A television is measured by its diagonal. If the height of a 70 inch television is 42 inches, what is the width?
 A 10-foot ladder is leaning against a wall. The base of the ladder is 2 feet from the base of the building. How far up the building does the ladder fall? A television is measured by its diagonal.... more
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Pre Algebra

02/02/15

pre-algebra word problem
5 cans for $2.76, each can is $0.552. How much for one can?
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Pre Algebra

01/30/15

Need Help on this problem
A radio disc jockey has 7 songs on this upcoming hour's playlist: 3 are rock songs, 2 are reggae songs, and 2 are country songs. The disc jockey randomly chooses the first song to play, and then... more
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Pre Algebra

01/30/15

The length of a rectangle is 3 yd longer than its width. If the perimeter of the rectangle is 30 yd , find its area.
The length of a rectangle is 3 yd longer than its width. If the perimeter of the rectangle is 30 yd , find its area.
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Pre Algebra

01/30/15

A box of nails weighs 130 pounds when it is 2/3 full. It weighs 74 pounds when it is 3/8 full. What is the weight of the box?
 A box of nails weighs 130 pounds when it is 2/3 full. It weighs 74 pounds when it is 3/8 full. What is the weight of the box?
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Pre Algebra

01/29/15

A box of nails weighs 130 pounds when it is 2/3 full. It weighs 74 pounds when it is 3/8 full. What is the weight of the box?
A box of nails weighs 130 pounds when it is 2/3 full. It weighs 74 pounds when it is 3/8 full. What is the weight of the box?
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Pre Algebra

01/21/15

Elisa found a square digital image of a famous painting on a Web site. The image contained 360,000 pixels. How many pixels tall is the image
We are learning about square roots.
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Pre Algebra

01/21/15

Multiplying binomials with leading coefficients of 1 Multiply. (-y6+y5) Simplify your answer.
Multiply. (−y6+y5) Simplify your answer.
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Pre Algebra

01/16/15

Find the volume of a cone with a base diameter of 11ft and a height of 6ft . Write the exact volume in terms of p
Find the volume of a cone with a base diameter of 11ft and a height of 6ftWrite the exact volume in terms of pi
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Pre Algebra

01/16/15

Find the volume of a cone with a base diameter of 10ft and a height of 11ft . Write the exact volume in terms of p
Find the volume of a cone with a base diameter of  10ft and a height of 11ftWrite the exact volume in terms of π
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Pre Algebra

01/15/15

Find the volume of a cone with a base diameter of 10ft and a height of 11ft . Write the exact volume in terms of p
Find the volume of a cone with a base diameter of 10ftand a height of 11ft Write the exact volume in terms of π
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Pre Algebra

01/15/15

Find the volume of a cone with a base radius of 6cm and a height of 9cm . Write the exact volume in terms of p , and be sure to include the correct unit
Find the volume of a cone with a base radius of 6cmand a height of 9cmWrite the exact volume in terms of Π and be sure to include the correct unit in your answer.
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Pre Algebra

01/14/15

how doi do this????
mymathhomework says 3(1+3x) and i have to figureout how to maltiply 3*3x and 5 hve n65dea h6w t6d6 5t
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Pre Algebra

01/14/15

The length of a rectangle is six times its width. If the perimeter of the rectangle is 70 m , find its area.
The length of a rectangle is six times its width. If the perimeter of the rectangle is 70 m find its area.
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Pre Algebra

01/14/15

The length of a rectangle is twice its width. If the area of the rectangle is 128 cm2 , find its perimeter.
The length of a rectangle is twice its width. If the area of the rectangle is 128 cm2 find its perimeter.
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Pre Algebra

01/14/15

The length of a rectangle is 3 m longer than its width. If the perimeter of the rectangle is 26 m , find its area.
The length of a rectangle is 3 m longer than its width. If the perimeter of the rectangle is 26 m find its area.
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Pre Algebra

01/13/15

what time is it?
Mr.wilson has a problem.he can't sleep when the dogs in his neighborhood start to howling at the full moon.  Luckily, it takes the sound of two dogs barking at the same time to awake him. Last... more
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Pre Algebra

01/13/15

The length of a rectangle is twice its width. If the perimeter of the rectangle is 54 in , find its area.
The length of a rectangle is twice its width. If the perimeter of the rectangle is 54in, find its area.
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Pre Algebra

01/12/15

the supplement of the measurement of an angle is 16 degrees less than three times the angle. find the angl and its supplement.
i need to find out how to do it in exact steps and a visual diagram
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