Solve.
-The number G of gears a machine can make varies directly as the time T it operates. If it can make 5155 gears in 19 hours, how many gears can it make in 3 hours?
A) 813.95 gears
B) 5177 gears
C) 0.0111 gears
D) 271.32 gears

Question

Quizplus · Accepted Answer

The relationship between the number of gears and time is direct, so G = kT, where k is the constant of variation. From the given, 5155 = k*19, solving for k gives k = 271.32. For 3 hours, G = 271.32*3 = 813.96, which rounds to 813.95 gears.

Solve. -The Number G of Gears a Machine Can Make Varies