Question

Jamal has $15.00 to spend at the concession stand. He buys nachos for $7.50, and he wants to purchase some Sour Straws for $1.50 each. How many Sour Straws can Jamal purchase with the money that he has? Variable: ______________________________ Inequality: ______________________________ Solution: ______________________________

Answer 1

Answer: Variable: y= Number of sour straws.

Inequality: 7.50+1.50y ≤ 15

Solution: y ≤ 5

Explanation:

Let y= Number of sour straws.

Cost for nachos = $7.50

Cost per sour straw = $1.50

Total cost = 7.50+1.50y

Money he has $15

Total cost must be less than orequal to the money he has.

So required inequality: 7.50+1.50y ≤ 15

Subtract 7.50 from both sides

`1.5y\leq 7.5\\\\\Rightarrow\ y\leq(7.5)/(1.5)\\\\\Rightarrow\ y\leq 5`

He can buy at most 5 sour straws.