Find them
18 should be your answer! The only thing you have to do is divide 54 by 3, which should give you an integer. By the way, an integer is a number that has no decimal point or fraction.
The total cost for the month of October will be $64.5
Step-by-step explanation:
Given,
September charges = $51
Minutes used = 120 minutes
Cost per minutes = $0.30
Cost of 120 minutes = 120*0.30 = $36
Let,
Monthly fee = x
Monthly fee + 120 minutes charges = 51
x+36=51
Subtracting 36 from both sides
The company charges $15 monthly fee.
Minutes used in October = 165 minutes
Let,
y be the total cost for October.
Monthly fee + minutes*per minute charges = Total cost for October
x+165*0.30=y
The total cost for the month of October will be $64.5
Keywords: linear equation, subtraction
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