Robin can clean 72 rooms in 6 days how many rooms can robin clean in 9 days

Hello!

Robin can clean 72 rooms in 6 days. How many rooms can Robin clean in 9 days?

We have a proportional magnitude (directly proportional), if we increase the number of days for cleaning, obviously we will have more rooms cleaned, then:

clean rooms __________ days

72 ----------------------------------- 6

y ------------------------------------- 9

multiply the means by the extremes

108 clean rooms in 9 days  

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I Hope this helps, greetings ... Dexteright02! =)

2160ft3

step-by-step explanation: