6. charlie can spend up to $8 on lunch. he wants to buy a tuna sandwich, a bottle of
apple juice, and x pounds of potato salad.
write and solve an inequality to find the
possible numbers of pounds of potato
salad he can buy?
apple
define variable:
juice
potas

The maximum number of pounds of potato salad that Charlie can buy is 0.375

Step-by-step explanation:

see the attached figure to better understand the problem

Let

a ----> the cost of one tuna sandwich

b ----> the cost of a bottle of apple juice

c ----> the cost per pound of potato salad

x ----> pounds of potato salad

we have

we know that

He wants to buy a tuna sandwich, a bottle of  apple juice, and x pounds of potato salad and can spend up to $8

The inequality that represent this situation is

substitute the given values

Solve for x

Combine like terms

Subtract 6.50 both sides

Divide by 4 both sides

therefore

The maximum number of pounds of potato salad that Charlie can buy is 0.375