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nikklg [1K]
3 years ago
11

Sergio's internet provider charges its customers $9 per month plus 4¢ per minute of on-line usage. Sergio received a bill from t

he provider covering a period and was charged a total of $81.40. How many minutes did he spend on-line during that period? (Round to the nearest whole minute, if necessary.)
Mathematics
1 answer:
Degger [83]3 years ago
8 0
$81.40-$9.00=$72.40
$72.40/.4 (cents)= 181 minutes 
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