Ameliamarie2001 Ameliamarie2001
  • 02-04-2014
  • Mathematics
Answered

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?



Answer :

luwamthebomb luwamthebomb
  • 19-04-2014
y=0.15.77.5+10  y=11.62+10  y=21
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