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

0 thoughts on “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”

1. 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

   Reply