Asked by Ann

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?
Answered by Bosnian
100 / 60 = 2 * 5 * 10 / ( 2 * 3 * 10 ) =

5 / 3 = 1.6666666

1.6666 * 100 % = 166.66666 %

166.66666 % - 100 % = 66.66666 %


Correct answer.
Answered by hi
why use divide?
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