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alexgriva [62]
3 years ago
15

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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coldgirl [10]

Did somebody say you're supposed to draw the graph of the equation ?
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OK.  Just like every other equation you need to graph, get it in the
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There's the equation you can handle. 
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