You receive 9 text messages in 12 minutes. What is the rate of text messages per hour? | MathCelebrity Forum

You receive 9 text messages in 12 minutes. What is the rate of text messages per hour?

math_celebrity

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You receive 9 text messages in 12 minutes. What is the rate of text messages per hour?

Set up a proportion of text messages to minutes. Remember, there are 60 minutes in an hour, so we have:
9/12 = t/60 where t is the number of text messages in 60 minutes (1 hour)

Typing this into the search engine, we get t = 45.
 
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