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a grocery store is offering a promotion where a customer receives $0.20 discount per selected sale items, and Paulo has a coupon where he receives $0.10 off regularly priced items. Before applying the discounts the cost of Paulo's sale items was $58..18 and the cost of Paulo's regularly priced items was $ 41.34. After applying the discounts, Paulo spent $92.32 on both the sale items and regularly priced items. if Paulo bought 6 more sale items than regularly priced items, how many items did he buy in all?



Answer :

SOLUTION

Define a parameter

[tex]\begin{gathered} Sales\text{ item=X} \\ \operatorname{Re}gular\text{ items =y} \end{gathered}[/tex]

Since Paulo have 6 more items, we have

[tex]\begin{gathered} y+6 \\ \text{and } \\ x-6 \end{gathered}[/tex]

Then the equation becomes

[tex]undefined[/tex]

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