Do you ever want to describe a minimum or a maximum amount of something?
See solution.
Practice makes perfect
Inequalities are very useful in real-life situations. We can use them whenever we want to describe some boundaries like a minimum or a maximum amount of time, money, or supplies. Let's look at some examples!
Sweets
Imagine that Maria has $10 and she goes to the grocery store to buy some sweets. The amount of money she can spend there has to be less than or equal to $10. If we describe the money she can spend on sweets as the variable m, we can write an inequality describing this situation.
m ≤ $10
This inequality means that the amount of money Maria can spend on sweets is less than or equal to $10.
Jacket
Imagine that John saves money to buy a jacket that costs $150. This means that he needs to save $150 or more. Let's describe his savings using the variable s. Then, we can write an inequality describing this situation.
s ≥ $150
This inequality means that the amount of savings is greater than or equal to $150.
