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Laura can pressure wash her driveway at an average rate of 15 square feet per minute. Which is closest to this rate in square yards per second?

A.0.35
B.0.24
C.0.03
D.0.01

User Roozbeh
by
8.1k points

2 Answers

6 votes

Answer:

c. .03 in the answer 1 yard=9 sq ft so 15/9=1.66 and then 1.66/60 seconds = .027 so the closest answer is .03

Explanation:

User Bearfriend
by
8.4k points
3 votes
The correct answer is C) 0.03.

1 square yard is a square whose sides are all 1 yard in length. 1 yard = 3 feet, so each side of this square is 3 ft; this gives us 1 yd² = 3(3) = 9 ft². This gives us 15/9 = 1.67 yd²/min.

1 minute = 60 seconds; this gives us 1.67*60 = 0.027 ≈ 0.03 yd²/sec
User Evgeny Sorokin
by
8.0k points

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