Find the rate of change Marcia can pack 20 envelopes in 60 minutes and 80 envelopes in 4 hours. (Covert hours to minutes.)

asked Sep 10, 2021 95.5k views

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Find the rate of change

Marcia can pack 20 envelopes in 60 minutes and 80 envelopes in 4 hours.
(Covert hours to minutes.)

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4 votes

she packs 20 envelopes per hour(60 minutes) i don’t know if this is correct, i’m sorry

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6 votes

The rate of change is 3

60/30=3

4x60=240 minutes
240/80= 3

So rate of change is 3

Rich Maes answered Sep 15, 2021

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