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3.04 Rates in context

Interactive practice questions

Tina counts $26$26 heart beats over a $20$20 second interval.

a

How many groups of $20$20 seconds are in $1$1 minute?

b

What is Tina's heart rate in beats per minute (bpm)?

Easy
< 1min

Valerie counts $12$12 heart beats over a $10$10 second interval. What is her heart rate in beats per minute (bpm)?

Easy
< 1min

Michael is attending to a patient on the way to the emergency department. In the ambulance, he takes a quick measurement of the patient's heart rate, and finds it to be $30$30 beats over $15$15 seconds. An hour later, in the hospital he takes a more detailed measurement and finds the patient's heart rate to be $189$189 beats over $90$90 seconds.

Medium
1min

A pulse was recorded beating at $17$17 times per $15$15 seconds. How many beats per minute is this?

Easy
< 1min
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Outcomes

1.1.17

convert units of rates occurring in practical situations to solve problems. For example, 1 tablespoon (tbsp) = 4 teaspoons (tsp) or 1 tbsp = 20 ml (Australia) or 15 ml (US and UK)

1.1.18

use rates to make comparisons

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