Answer:
- A. 80 – 5x
- C. 5(16 – x)
- D. –5x + 80
Explanation:
After Tomas bought 80 tickets and had been on 0 rides, the number he had left was 80. Each ride decreases that number by 5 tickets, so x rides will decrease that number by 5x tickets. The number left after x rides is then ...
... 80 - 5x . . . . . matches selection A
The commutative property of addition lets us change the order of these terms to ...
... -5x +80 . . . . . matches selection D
The distributive property lets us factor out 5, so the expression can be written ...
... 5(16 -x) . . . . . matches selection C
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Any expression where x or 5x is being added cannot be right, as Tomas's remaining tickets do not increase when he rides another ride.