SOLUTION: what is the total cost in dollars of a $45 shirt with 5% sales tax?

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Question 252715: what is the total cost in dollars of a $45 shirt with 5% sales tax?
Found 2 solutions by drk, richwmiller:
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
Price of shirt = P.
total cost including tax is
P (1 + tax rate). So,
45(1 + .05)
45*(1.05)
$47.25

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
Let x=the cost of the shirt
1.05x will the the cost plus 5% tax
x=45
y=cost +tax
y=1.05*45