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olya-2409 [2.1K]
3 years ago
6

If y varies directly as x and y = 14 when x = 7, find x when y is 30

Mathematics
1 answer:
Fiesta28 [93]3 years ago
5 0
If directly proportional then y=kx so
14=k x (7) so k=2
Y=kx
Y=2x
30=2 x
Divide both by 2
X=15
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