Difference between revisions of "2004 AMC 8 Problems/Problem 7"
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| − | The maximum heart rate is <math>220-26=194</math> beats per minute. The target heart rate is then <math>0.8*194 \approx | + | The maximum heart rate is <math>220-26=194</math> beats per minute. The target heart rate is then <math>0.8*194 \approx \boxed{\textbf{(B)}\ 155}</math> beats per minute. |
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| + | ==See Also== | ||
| + | {{AMC8 box|year=2004|num-b=6|num-a=8}} | ||
Revision as of 03:34, 24 December 2012
Problem
An athlete's target heart rate, in beats per minute, is 
of the theoretical maximum heart rate. The maximum heart rate is found by subtracting the athlete's age, in years, from 
. To the nearest whole number, what is the target heart rate of an athlete who is 
years old?
Solution
The maximum heart rate is 
beats per minute. The target heart rate is then 
beats per minute.
See Also
| 2004 AMC 8 (Problems • Answer Key • Resources) | ||
| Preceded by Problem 6 |
Followed by Problem 8 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
| All AJHSME/AMC 8 Problems and Solutions | ||
