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ninimao ninimao
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3 years ago
Daniel White borrowed 5,00 . for 80 days. At the due date, he paid 70 interest and repaid all of the principal. What was the ordinary simple interest rate (360-day year) that was charged on the loan? (To nearest 1/10 of a percent.)

Q. 2

A restaurant had 18.6 pounds of pork on Wednesday morning and received 20.9 pounds on Wednesday. On Thursday morning it had 9.8 pounds on hand. How many pounds did it use on Wednesday?

Q. 3

Kyle Winston borrowed 4,00 . for 90 days. At the due date, he paid 75 interest and repaid all of the principal. What was the ordinary simple interest rate (360-day year) that was charged on the loan? (To nearest 1/10 of a percent.)

Q. 4

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?
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brand4brand4
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3 years ago
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Ans. #1

R = I  (PT) = 70  (5,00 .  80/360) = 0.063 = 6.3

Ans. #2

18.6 + 20.9 = 39.5 pounds; 39.5 - 9.8 = 29.7 pounds

Ans. #3

R = I  (PT) = 75  (4,00 .  90/360) = 0.075 = 7.5

Ans. #4

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

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