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Skyler P.

Ecological Economist, videographer

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Geometry

TutorMe

Question:

There is a triangle with a right angle. On each side of the right angle are the legs of the triangle which measure 3 inches and 4 inches. What length is the hypotenuse.

Skyler P.

Answer:

5 inches. Using the Pythagorean theorem we know that A squared + B squared = C squared. In our case 3 X 3 + 4 X 4 = 25. The hypotenuse will be the square root of 25. We might also remember that this is a 3,4,5 triangle.

Pre-Algebra

TutorMe

Question:

You have 12 friends. 3 of your friends always wear red. What percentage of your friends always wear red?

Skyler P.

Answer:

25%. Out of your 12 friends, 3 always wear red. This means that 3/12 of your friends always wear red. 3 divided by 12 is .25, which is equal to 25%.

Basic Math

TutorMe

Question:

You've just received a birthday present. The box is 1 foot tall, 1 foot wide and 2 feet long. What is the minimum amount of wrapping paper that was required to cover this box? a) 1040 square inches. b) 1240 square inches. c) 1440 square inches. d) 2 cubic feet.

Skyler P.

Answer:

To determine the surface area of each side we multiply the width by the height. We have 4 sides that are 2 ft X 1 ft and 2 sides that are 1 ft X 1 ft . 4 X (2 X 1) + 2 X (1 X 1) = 10 square feet. The box requires 10 square feet of wrapping paper. Since 1 square foot is 12 inches X 12 inches, and we have 10 square feet, we can multiply 12 X 12 ( 10 ) = 144 ( 10 ) This equals 1440 square inches. Also, answer d is in volume. Your present may be as big as 2 cubic feet, but we are not concerned with what is inside the box yet.

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