Question

Rhianna has $9. She will buy a bus pass for $5 and the rest on Snickers candy bars. Each Snickers costs $0.75. Write an inequality to represent this situation, then use it to figure out how many Snickers she can buy.

a) $9 - $5 ≤ $0.75n; n ≤ 4
b) $9 - $5 ≥ $0.75n; n ≥ 4
c) $5 - $0.75n ≥ $9; n ≥ 4
d) $5 - $0.75n ≤ $9; n ≤ 4

Answer 1

Rhianna can buy a maximum of 5 Snickers.

Step-by-step explanation:

To write an inequality to represent this situation, we can subtract the cost of the bus pass from the amount of money Rhianna has and compare it to the cost of the Snickers she wants to buy. The inequality can be written as: $9 - $5 ≤ $0.75n, where n represents the number of Snickers she can buy. To figure out how many Snickers she can buy, we can solve the inequality: $9 - $5 ≤ $0.75n. Simplifying, we get $4 ≤ $0.75n. Dividing both sides of the inequality by $0.75, we get 5.33 ≤ n. Since Rhianna cannot buy a fractional number of Snickers, we round down to the nearest whole number. Therefore, she can buy a maximum of 5 Snickers.