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1. Given that y is proportional to the cube of x, and that y = 48 when x - 2, calculate the value ofx when y = 62. Given that y varies as the cube of x, and that y = 48 when x = 6, find the value of ywhen x = 9. |
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Answer» Step-by-step EXPLANATION: Explanation: y ∝ x
y = k x
when x = , y = 5
5 = k ( 2 )
∴ k = 5 2
When x = , y = ( 5 2 ) ( 16 )
y = 40 |
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