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In a certain function, y varies directly with x. If y = 6 when x = 8, find x when y = 9.

In a certain function, y varies directly with x. If y = 6 when x = 8, find x when y = 9.
asked 17.0k views
3 votes
In a certain function, y varies directly with x. If y = 6 when x = 8, find x when y = 9.

asked
User Ly
by
8.3k points

1 Answer

7 votes
y=6, x=8
6/8=0.75

0.75x=y
we can use this solve for x when y=9
0.75x=9
divided both sides by 0.75
x=12

so when y=9, x=12
answered
User Rohit Khanna
by
8.2k points
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