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If y varies directly as x, and y=6 when x=10, find x when y=18

If y varies directly as x, and y=6 when x=10, find x when y=18
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22 votes
If y varies directly as x, and y=6 when x=10, find x when y=18

User Djsutho
by
8.0k points

1 Answer

13 votes
y = kx as y and x are directly proportional
6 = 10k
k = 0.6
y = 0.6x
18 = 0.6x
x = 30
User Abuder
by
9.2k points
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