3 years ago

Suppose y varies directly with x. When X is 2, y is 10. What is y when x is 4?

Mathematics

1 answer:

melomori [17]3 years ago

6 0

X:y

2/10 = 4/x

Cross multiply

2x X= 10x4

2x = 40

Eliminate

2x/2 = 40/2

x = 20

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