erikserna332 erikserna332

14-12-2017
Mathematics

contestada

whoever answers this will get 20 points
y varies directly as x. If y = 4 when x = 2, find y when x = 22.

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tynollette tynollette

14-12-2017

y varying directly as x means y=kx, k is a constant.
find the constant: when y=4, x=2, so k=2
y=2x
when x=22, y=2*22=44

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