Question

A senior class is selling lanyards as a fundraiser. The profit for each lanyard is $0.75. Write and solve an inequality to determine the number of lanyards the class must sell to make a profit of at least $250.

Answer 1

Ok so lets say that the number of lanyards is equal to b. We have to write an equation that solves for b. That would be:

0.75b ≥ 250

Now you solve the equation

0.75b ≥ 250
——— —— (divide both sides by 0.75)
0.75 0.75

b ≥ 333.3

You have to round that up because you can’t sell part of a lanyard. So the answer is:

The seniors have to sell at least 334 lanyards.

Answer 2

0.75x > = 250
x > = 250/0.75
x > = 333.33....so they would have to sell at least 334 of them