22-01-2015
Mathematics

Answered

Kwame purchased a washer for $312.20. The price of the washer included sales tax of 11.5%.

Which equation can be used to find the price, p, of the washer before tax?

A.
11.5p = 312.20

B.
p + 0.115p = 312.20

C.
0.115p = 312.20

D.
p + 11.5p = 312.20

Answer :

macio06 macio06

22-01-2015

Correct answer is B. Lets assume p is price with no tax. To get tax we can multiply 11.5% times p. 11.5% its 0.115p
Now we can add p and 0.115p to get 312.2
Finally we get the following eq
p+0.115p=312.2

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