SOLUTION: Mrs.Jonson just purchased a total of 12 books and magazines for her office. The total bill was $112. She spent $16 on magazines, and the books cost $12 each. How many books did she

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Question 1112297: Mrs.Jonson just purchased a total of 12 books and magazines for her office. The total bill was $112. She spent $16 on magazines, and the books cost $12 each. How many books did she buy.
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39616)   (Show Source): You can put this solution on YOUR website!
ITEMS       QUANT            PRICE            COST

BOOKS                         $12 ea.

MAGAZINES                                        $16

TOTAL           12                             $112

Find the cost for the books by difference and use this to find the quantity of the books.


$96 for the books.

b, number of books,




Eight books bought.

How many magazines?

Four magazines were bought.
Answer by ikleyn(52776)   (Show Source): You can put this solution on YOUR website!
.
In my school years we presented the solution in  one line:



          The number of books =  =  = 8.



The most advanced of us, young students, could notice that the info  " . . . a total 12 books . . . "  is EXCESSIVE and NON-NECESSARY 

and is not used in the solution.


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