Choose the correct answer. If y varies directly as x and x = 5 when y = 2, what will y be when x = 10?

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4) Choose the correct answer.
If y varies directly as x and x = 5 when y = 2, what will y be when x = 10?
5) Choose the correct answer.
If y = kx and x = 3 when y = 4, what is the constant of proportionality?

SnapAndSolve AI · Accepted Answer

Since y varies directly as x, we have y = kx. Given x = 5 and y = 2, we find k = y/x = 2/5. When x = 10, y = kx = (2/5) * 10 = 4. The correct answer is 4.
Given y = kx, with x = 3 and y = 4, the constant of proportionality k = y/x = 4/3. The correct answer is 4/3.

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Choose the correct answer. If y varies directly as x and x = 5 when y = 2, what will y be when x = 10?

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