Question

Nine hundred light bulbs are packaged and shipped to a retail store. Thirteen percent of the light bulbs arrive broken. Which equation can be used to find the number of light bulbs that were broken?

a. (13* 9)/100* 9 = 117/900
b. (13* 9)/900* 9 = 117/8100
c. (100/ 9)/900/ 9 = (11.1)/100
d. (900/ 9)/13/ 9 = 100/1.4

Answer 1

The equation to find the number of light bulbs that arrived broken is to calculate 13% of 900, which is done by multiplying 900 by 0.13 to get 117.

Step-by-step explanation:

To find the number of light bulbs that arrived broken, we need to calculate 13% of 900. The correct equation to determine this is by multiplying 900 by the percentage of broken bulbs (expressed as a decimal), which is 0.13.

Number of broken light bulbs = 900 × 0.13 = 117

This equation is a simple percentage calculation. We multiply the total number of light bulbs by the breakdown rate (13%), converting the percentage to a decimal by dividing by 100.