3 years ago

y varies directly with x, and y = 9 when x = 2. What is the value of y when x = 3? Enter your answer in the box.

Mathematics

1 answer:

Reptile [31]3 years ago

7 0

Let y=kx
9=2k
k=4.5
when x=3
y=kx becomes
y=4.5 x 3
=13.5

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