In 10 minutes, a heart could beat 700times.At this rate in how many minutes will a heartbeat 140 times? At what rate can a heart
beat.
2 answers:
i think it should be two minutes
Answer:
2minutes. 70/min
Step-by-step explanation:
140 is 20% of 700 about and 2 minutes is 20% of 10min or 1/5. or you can say that 700/10 is 70/min so 140/70 is 2 so 2minutes for 140 heartbeats.
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The answer is (B). I hope this helps!
7.5 i think not 100% sure tho