Question 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 hundredth

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 Log in to Reply

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