DaffyXP DaffyXP

07-06-2018
Mathematics

contestada

If y is 7 when x is 3.5 and y varies directly with x, find y when x is 12.

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emilykrogfoss emilykrogfoss

07-06-2018

So to find y, we have to set this into fractions and cross multiply.
so, remember y/x
7/3.5=y/12
12*7=3.5y
solve for y
84/3.5=y
y=24

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