Author Question: An electrical contractor started the day with 284.2 feet of 10 gauge copper wire. He used 42.5 feet ... (Read 115 times)

mia · **on:** Jun 24, 2018

An electrical contractor started the day with 284.2 feet of 10 gauge copper wire. He used 42.5 feet on one job and 114.8 feet on another job. How many feet of wire did he have at the end of the day?

Question 2

Wendy Ellison needed to borrow 2,500 to pay her son's school tuition. She borrowed the money from her credit union at 8 ordinary simple interest (360-day year) and, repaid a total of 2,600 at the end of the loan period. Compute the length of the loan period. (To the nearest day.)

kiamars2010 · **Reply #1 on:** Jun 24, 2018

Answer to Question 1

42.5 + 114.8 = 157.3; 284.2 - 157.3 = 126.9 feet

Answer to Question 2

I = 2,600 - 2,500 = 100 . T = I (PR) = 100 (2,500 0.08) = 0.5 year; 0.5 360 = 180 days