3 years ago

Y varies directly as x if x=15 when y=20, find x when y=30

Mathematics

1 answer:

mixas84 [53]3 years ago

6 0

Answer:

X=22.5

Step-by-step explanation:

Y=kX

20=15k

k=4/3

For X when Y=30

30=4/3×X

Cross multiply

4X=90

X=22.5

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