A phone company uses the equation y=0.15x+10 to find y the monthly charge for a customer sending x text messages. How many text messages are sent if the monthly charge is $77.50?

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asked Jul 11, 2015 230k views

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A phone company uses the equation y=0.15x+10 to find y the monthly charge for a customer sending x text messages. How many text messages are sent if the monthly charge is $77.50?

Mathematics
high-school

Bryan B asked

by Bryan B

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y=0.15.77.5+10 y=11.62+10 y=21

Beeftendon answered Jul 17, 2015

by Beeftendon

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