Isabella’s mom takes her and two other friends mini-golfing. the table below shows how much different things cost at the mini-golf park.

price sheet
item

cost
adult game

$7.00
child game

$3.50
cheese pizza

$17.25
10 arcade tokens

$4.00

isabella’s mom purchases 1 adult game, 6 child games, a cheese pizza, and 30 arcade tokens. she has a coupon for 1/10 off the total bill. how much did isabella’s mom spend at the mini-golf park?

The gross total amount that has to be paid by Isabella’s mom is equal to the summation of the amount paid for the games, pizza, and tokens. If we let x be this total, the equation becomes,

                                    x = ($7) + 6($3.5) + ($17.25) + 10($4)

                                                x = $85.25

Because she has a coupon for 1/10 of the total bill, the amount that she is to pay is only 9/10 of the total amount.

                                                x = ($85.25)(9/10)

                                                x = $76.725

Hence, the total amount that has to be paid by Isabella’s mom is $76.725. 

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