SOLUTION: the cost of a new car included a 4 % sales tax. if c represents the cost of the car before tax, write an expression for the total cost, including sales tax.
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Question 921986: the cost of a new car included a 4 % sales tax. if c represents the cost of the car before tax, write an expression for the total cost, including sales tax.
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
c = cost of car before taxes.
c + .04 * c = cost of car after taxes.
you can factor out the c to get:
c * (1 + .04) = cost of car after taxes.
you can simplify to get:
c * 1.04 = cost of car after taxes.
this can also be written as:
1.04 * c = cost of car after taxes.
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