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3 years ago

The value of y is directly proportional to the value of x. If y = 288 when x = 32. What is the value of y when x = 25?

Mathematics

1 answer:

Marianna [84]3 years ago

6 0

Answer:

y = 225

Step-by-step explanation:

since y and x are directly proportional the equation relating them is

y = kx ← k is the constant of proportionality

to find k use the given condition y = 288 when x = 32

k = $\frac{y}{x}$ = $\frac{288}{32}$ = 9

y = 9x ← is the equation of proportionality

when x = 25, then

y = 9 × 25 = 225

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