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OpenStudy (mysticfury):
Variable y varies directly with variable x, and y = 56 when x = 8. What is the value of y when x = 3? y = ___ My answer is 21
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OpenStudy (mysticfury):
i took 56 divided by 8 and got 7 then took 7 x 3 and got 21
Directrix (directrix):
That is correct. The variation constant is 7 from the given information. Y = 7*x and then 7*3 =21 from that.
OpenStudy (mysticfury):
ok thanks again
Directrix (directrix):
You're welcome, as always.
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