Question

For 9x + 25 = 88, Deena wrote the situation "I bought some shirts at the store for $9 each and received a $25 discount. My total bill was $88. How many shirts did I buy?"

A.) what mistake did Deena make?

B.) rewrite the equation to match Deena's situation.

C.) how could you rewrite the situation to make it fit the equation?

Answer 1

A.Deena did +25 instead of - 25, since 88 is the bill and 9x was the original cost, minus the discount of 25.
B. 9X-25= 88
C." I bought some shirts at the store for $9 each and had to pay $25 worth of taxes. My total bill was $88. "
Reason for C, because taxes would be an addition to the to the price of the 9 pants, and that is what is shown.

Answer 2

A.) Denna consider wrong the discount. She added it instead of resting it

B.) 9x - 25 = 88

C.) I bought some shirts at the store for $9 each, to get that price , I must be a member of the club , the membership is one pay of 25. My total bill was $88

Explanation:

To get the total bill we have to multiple the quantity of shirts (x) by the price minus the discount she get.

So, in the equation Denna consider wrong the discount, She added it instead of resting it . It should be

9x - 25 = 88

Where

Price =$9

x= quantity of shirts

discount = $25

Total bill= $88

To re-write the situation we have to consider another payment, It could be a membership to a club.