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4 years ago

FY varies directly as X andY is 48 when X is six which expression can be used to find x is 2

Mathematics

1 answer:

ANEK [815]4 years ago

3 0

Answer:

y = 16

Step-by-step explanation:

Given that y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 48 when x = 6, thus

k = $\frac{y}{x}$ = $\frac{48}{6}$ = 8

y = 8x ← equation of variation

When x = 2, then

y = 8 × 2 = 16

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