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TEA [102]
2 years ago
7

The value of y varies directly with x2, and y = 150 when x = 5. What is the value of y when x=3?

Mathematics
1 answer:
kow [346]2 years ago
3 0
<span>The value of y when x=3 when the value of y varies directly with x^2, and y = 150 when x = 5 is 54. Since the value of y varies directly with x2, then: y = k * x^2, where k is constant. When y = 150 and x = 5, the value of constant is: 150 = k * 5^2. 150 = k * 25. k = 150/25. k = 6. Thus, when x = 3, the value of y will be: y = 6 * 3^2. y = 6 * 9. y = 54.</span>
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