Question

Kevin had to measure the diameter of a hair strand and the diameter of a grain of sand for his science experiment. He found the diameter of the hair strand to be 0.00006 inches and the diameter of a gain of sand to be 1.3 x 10^-3 inches.

The diameter of the grain of sand is _____ x 10^-3 inches more than the diameter of the hair strand.​

Answer 1

The diameter of the grain of sand is 1.3 x 10^-3 inches, and the diameter of the hair strand is 0.00006 inches.

So, the diameter of the grain of sand is 1.3 x 10^-3 - 0.00006 = 0.00124 inches more than the diameter of the hair strand.

The diameter of the grain of sand is 0.00124 / 10^-3 = 1.24 x 10^3 times more than the diameter of the hair strand