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bogdanovich [222]
3 years ago
10

if y varies directly as the square root of x and y=87 when x=625, find y if x =390625. Round off your answer to the nearest hund

redth
Mathematics
1 answer:
natta225 [31]3 years ago
6 0

Answer:

2175

Step-by-step explanation:

y = k sqrt(x)

x = 625

y = 87

87 = k * sqrt(625)

87 = k * 25

87/25 = k

k = 3.48

y = 3.48 * sqrt(390625)

y = 3.48 * 625

y = 2175

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