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Suppose that y varies directly with x and y=10 when x=8. What is x when y=30?

Suppose that y varies directly with x and y=10 when x=8. What is x when y=30?
asked 143k views
5 votes
Suppose that y varies directly with x and y=10 when x=8. What is x when y=30?

asked
User Sagar Rakshe
by
7.9k points

1 Answer

7 votes
Y=kx
10 = 8k
10/8 = k
k = 1.25

30 = 1.25x
30/1.25 = x
24 = x
X = 24
answered
User Krishna Sharma
by
7.8k points
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