SOLUTION: ritu bought a set of story books for 345 including 15% sales tax and calculator for 110 including 10% sales tax what percent is the sales tax charged on the whole transaction

SOLUTION: ritu bought a set of story books for 345 including 15% sales tax and calculator for 110 including 10% sales tax what percent is the sales tax charged on the whole transaction

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Question 1064214: ritu bought a set of story books for 345 including 15% sales tax and calculator for 110 including 10% sales tax what percent is the sales tax charged on the whole transaction
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
Let n be the amount spent on books or a calculator before tax. Then
n+.15n=345
1.15n=345
n=300
And
n+.1n=110
1.1n=110
n=100
The total amount of sales tax is (345-300)+(110-100), or 55. ☺☺☺☺
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