Tamika measures her pulse rate at the peak of her exercising. It measures 155 beats per minute. This is \(2\frac{1}{2}\)times her resting pulse rate. How many beats per minute is Tamika's resting pulse rate?

62

Explanation

Divide 155 by \(2 \frac {1}{2}\).

\(155 \div 2\frac{1}{2}=155 \div \frac{5}{2}=155 \times \frac{2}{5}=31 \times 2=62\)
Her pulse rate at rest is 62 beats per minute.

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