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gladu [14]
3 years ago
7

It cost Naomi $7.70 to send 154 text messages. How many text messages did she send

Mathematics
1 answer:
s2008m [1.1K]3 years ago
4 0

You have to find the unit rate

SO..

7.70 / 154 = 0.05

So it cost her 0.05 cents for each text.

So then you divide $ 5.25 by the unit rate to get the number of text

5.25 /0.05 = 105

so she sent 105 text

To check it you just multiply the unit rate by the number of text you got and you show come up with $ 5.25

0.05 x 105 = 5.25

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