Asked by Shaniqua
Lobster fishers in Maine often use spherical buoys to mark their lobster traps. Every year the buoys must be repainted. An average buoy has a 12 inch diameter, and an average fisher has about 500 buoys. A quart of marine paint covers 175 ft squared. How many quarts of paint does an average fisher need each year?
Answers
Answered by
Ms. Sue
Let's change the inches to feet.
SA = 4 * 3.14 * 0.5^2
SA = 6.28 sq. feet
(500 * 6.28)/175 = 17.94 = 18 quarts
SA = 4 * 3.14 * 0.5^2
SA = 6.28 sq. feet
(500 * 6.28)/175 = 17.94 = 18 quarts
Answered by
Steve
area of 1 buoy: pi d^2 = 144pi
so, quarts of paint:
q = 144pi * 500 / 175
so, quarts of paint:
q = 144pi * 500 / 175
Answered by
Steve
oops - Go with Ms Sue - I forgot to change inches to feet.
Answered by
Ms. Sue
And I forgot to square the radius.
SA = 4 * 3.14 * 0.5^2
SA = 3.14 square feet
(500 * 3.14)/175 = 8.97 = 9 quarts
SA = 4 * 3.14 * 0.5^2
SA = 3.14 square feet
(500 * 3.14)/175 = 8.97 = 9 quarts
Answered by
Shaniqua
Thanks!
Answered by
Ms. Sue
You're welcome. Sorry about the mixup.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.