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in Commercial Mathematics by (56.3k points)

Complete the table given that x varies directly as y.

x 3 5 7 9
y 20 28

1 Answer

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by (30.5k points)
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Best answer

We know k = x/y

3/y1 = 5/20

By cross-multiplying

3(20) = 5y1

60 = 5y1

y1 = 60/5

= 12

We know k = x/y

7/28 = 9/y2

By cross-multiplying

7y2 = 9(28)

= 252

y2 = 252/7

= 36

x 3 5 7 9
y 12 20 28 36

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