100 / 60 = 2 * 5 * 10 / ( 2 * 3 * 10 ) =
5 / 3 = 1.6666666
1.6666 * 100 % = 166.66666 %
166.66666 % - 100 % = 66.66666 %
Correct answer.
By what percent is a 100-watt light bulb brighter than a 60-watt light bulb? Round to the nearest tenth.
40/60
= 2/3
= 2 ÷ 3
= 0.666667
0.666667 x 100 = 66.6667%
Answer: 66.7%
Is this correct?
2 answers
why use divide?