SOLUTION: For his phone service, Justin pays a monthly fee of $23, and he pays an additional $0.06 per minute of use. The least he has been charged in a month is $111.74. What are the pos

Question 1116754: For his phone service, Justin pays a monthly fee of
$23, and he pays an additional $0.06 per minute of use. The least he has been charged in a month is $111.74.
What are the possible numbers of minutes he has used his phone in a month?
Use M for the number of minutes, and solve your inequality for M.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
C=Monthly fee + 0.06*M, where M are minutes used.
23+0.06M>=111.74
0.06M>=88.74
M >=1479 minutes
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