For every 4,240 strings of decorative lights manufactured at a lighting factory, about480 are considered deficient before the time of packaging and are disposed of.If 162 strings of lights were disposed of last week because they were deficient, howmany strings of lights were manufactured?

Accepted Solution

Answer: 1431 total strings of lights.Step-by-step explanation:First, we need to set up a proportion for this problem.     480 deficient             =             162 deficient         4,240 total                                 x totaluse the "butterfly" method: multiply each diagonal of the proportion and set them equal to each other. 162 * 4,240  =   480x686880 =   480x686880/480 =  xx = 1431 total strings of lights.