Question

Mister Sports builds toy cars. He begins the week with a supply of 85 wheels and uses 4 wheels for each car he builds. Mr. Schwartz plans to order more wheels once he has fewer than 40 wheels left. In a quantity that can be used to find the number of cars Mr. Schwartz builds before he places an order for more wheels is blank minus blank x is less than 40. How many cars will Mr. Schwartz need to build before ordering more wheels?

Answer 1

To find the number of cars Mr. Schwartz will need to build before ordering more wheels, we need to solve the inequality 85 - 4x < 40, where x represents the number of cars. By solving the inequality, we find that Mr. Schwartz will need to build at least 12 cars before ordering more wheels.

Step-by-step explanation:

To find the number of cars Mr. Schwartz will need to build before ordering more wheels, we need to solve the inequality blank minus blank x is less than 40, where the variable x represents the number of cars. Let's solve the inequality step by step:

85 - 4x < 40

Subtract 85 from both sides:

-4x < -45

Divide both sides by -4, but remember to reverse the inequality because we're dividing by a negative number:

x > -45/-4

x > 11.25

Since we can't build a fraction of a car, Mr. Schwartz will need to build at least 12 cars before ordering more wheels.