Question

Dennis is selling chocolate bars for a

fundraiser, and if he sells over $175 worth of
candy, he'll win a prize. If chocolates sell for
$2.50 a bar, and Dennis has already sold $40
worth of candy, then how many more bars does
he have to sell in order to win a prize? (Solve for x with inequalities)

Answer 1

54 , 2.50x+40=175

Explanation:

Answer 2

2.5x + 40 > 175 (Dennis has to sell 55 chocolate bars)

Explanation:

When you solve the inequality, you get...

2.5x + 40 > 175

Subtract 40 on both sides...

2.5x > 135

Divide 2.5 on both sides...

x > 54

When you substitute 54 for x in the original inequality you get...

175 > 175

Dennis needs to make more than 175 so he needs to sell 55 not 54.

Hope this helps :)