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Kayhan S.

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Question:

If two painters paint a house at different speeds with one painter painting 5 feet per hour and the other painting 15 feet per hour, how long will it take them to paint 60 feet?

Kayhan S.

Answer:

The painters both paint a certain ft per hour, but the hour is constant and can be represented by x. So the painters paint at speeds of 5 feet per x and 15 feet per x. So 5x + 15x = 60. 20x = 60. x = 3 hours.

Algebra

TutorMe

Question:

x^2 +4x + 4 = 0. Solve for x.

Kayhan S.

Answer:

x^2 +4x + 4 = 0 can be factored to (x+2)(x+2) = 0. Then x+2 = 0. x = -2

Algebra

TutorMe

Question:

If x=5 and y=2, (x*(y^2))/2 = ?

Kayhan S.

Answer:

(x*(y^2))/2 = 10. Substitute x with 5 and y with 2 and use the order of operations. (5*(2^2))/2 = 10.

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