Johanna's parents give her $10 per week for lunch money. She cannot decide whether she wants to buy or pack her lunch. If a hot lunch at school cost $2, write and solve an inequality to finding the maximum number of times per week Johanna can buy her lunch

First, let's define a variable:

x: number of times you can buy lunch per week.

We write the following inequality:

2x < = 10

Clearing x we have:

x < = 10/2

x < = 5

Answer:

An inequality to finding the maximum number of times per week Johanna can buy her lunch is:

2x < = 10

solve an inequality:

x < = 5

(You can buy a maximum of 5 lunches per week).