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Liam's bookstore sold 40 notebooks and 20 newspapers for a total of $130 dollar sign, 130.

A day later, the bookstore sold 8 notebooks and 4 newspapers at the same prices, for a total of $28 dollar sign, 28.

How much does a notebook and a newspaper cost at Liam's bookstore?

 Mar 19, 2020
 #1
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40 b  + 20 n = 130   and

8   b   + 4 n = 28         Multiply this equation by  - 5   then add it to the top one to solve for b, notebooks

                                           then substitute this value of 'b' into one of the equations to solve for 'n'

 

WAIT a minute !   THIS question makes no sense !     both of the quantities are reduced to 1/5th on the second day, but the amount is not decreased to 1/5th.....no answer .

 Mar 19, 2020

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