The lengths of most older U.S. swimming pools are multiples of yards, generally 25 yards. However, newer pools are 25 or 50 meters long. Suppose an American swimmer is practicing for a 200-meter race. Four lengths of the pool is 200 yards, which is "close" to 200 meters. How close is it? That is, how much shorter is 200 yards than 200 meters? First predict the amount, using only mental math. Explain how you got your prediction and how you did the operations in your head. Each yard is a little less than 3-1 inches less than a meter, so 200 yards would be about 3-1 inches x 200 = 700 inches less than 200 meters. Then notice that 700 inches = 720 inches. Since 720 inches = feet = yards, we would expect the answer to be slightly less than this. Determine the amount (to the nearest yard). yd

The lengths of most older U.S. swimming pools are multiples of yards, generally 25 yards. However, newer pools are 25 or 50 meters long. Suppose an American swimmer is practicing for a 200-meter race. Four lengths of the pool is 200 yards, which is "close" to 200 meters. How close is it? That is, how much shorter is 200 yards than 200 meters? First predict the amount, using only mental math. Explain how you got your prediction and how you did the operations in your head. Each yard is a little less than 3-1 inches less than a meter, so 200 yards would be about 3-1 inches x 200 = 700 inches less than 200 meters. Then notice that 700 inches = 720 inches. Since 720 inches = feet = yards, we would expect the answer to be slightly less than this. Determine the amount (to the nearest yard). yd

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Question

The lengths of most older U.S. swimming pools are multiples of yards, generally 25 yards. However, newer pools are 25 or 50 meters long. Suppose an American swimmer is practicing for a 200-meter
race. Four lengths of the pool is 200 yards, which is "close" to 200 meters. How close is it? That is, how much shorter is 200 yards than 200 meters? First predict the amount, using only mental math.
Explain how you got your prediction and how you did the operations in your head.
1
1
Each yard is a little less than 3- inches less than a meter, so 200 yards would be about 3- inches x 200 = 700 inches less than 200 meters. Then notice that 700 inches≈ 720 inches. Since
2
yards, we would expect the answer to be slightly less than this.
720 inches
feet =
Determine the amount (to the nearest yard).
yd

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