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Alina [70]
3 years ago
5

Find y when = 22, if y varies directly as x, and y = 39 when x = 7.

Mathematics
1 answer:
posledela3 years ago
8 0

Answer:

let,

x=ky

y=39 when x=7 so,

7=39k

or, k=7/39

now, when x=22

22=7y/39

or, y=39×22/7

or, y=858/7

or, y=122.57 (rounded to the nearest hundredth)

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