A strand of hair has an average mass of 2.17×10^−5 ounces. A grain of rice has an average mass of 0.002 ounces. How much heavier is a grain of rice than a strand of hair? Express your answer in scientific notation.(1 point)
so blank × blank = blank ounces
fill in the blanks
A strand of hair has an average mass of 2.17×10^−5 ounces.
A grain of rice has an average mass of 0.002 ounces.
To find how much heavier a grain of rice is than a strand of hair, we can subtract the mass of the strand of hair from the mass of the grain of rice:
0.002 - 2.17×10^−5 = 0.002 - 0.0000217 = 0.0019783
So, a grain of rice is (1.9783×10^−3) ounces heavier than a strand of hair.