Question

A strand of hair has an average mass of 2.17x10^-5 ounces. a grain of rice has an average mass of 0.002 ounces. how much havier is the grain of rice?

Answer 1

Subtract the mass of a hair strand (2.17x10^-5 ounces) from the mass of a grain of rice (0.002 ounces) to find that the grain of rice is 0.0019783 ounces heavier.

Step-by-step explanation:

To find how much heavier the grain of rice is compared to a strand of hair, we need to subtract the mass of the hair from the mass of the rice. The mass of a strand of hair is given as 2.17x10^-5 ounces and the mass of a grain of rice is 0.002 ounces.

First, we convert the hair's mass from scientific notation to a regular decimal:

• Hair mass = 2.17x10^-5 ounces = 0.0000217 ounces

Next, we perform the subtraction:

• Rice mass - Hair mass = 0.002 ounces - 0.0000217 ounces
• Difference = 0.0019783 ounces

Therefore, the grain of rice is 0.0019783 ounces heavier than the strand of hair.