Question

Sara is considering ordering a large pizza from two different shops. Pizza

4 U charges $14 plus $1.25 per topping. John's Pizza charges $10 plus
$1.50 per topping. Which inequality could be solved to find the number of
toppings that makes Pizza 4 U less expensive than John's Pizza?

Answer 1

C) 0.25x > 4

Explanation:

Define the variable:

• Let x be the number of pizza toppings.

If Pizza 4 U charges $14 plus $1.25 per topping:

• 14 + 1.25x

If John's Pizza charges $10 plus $1.50 per topping:

• 10 + 1.5x

If Pizza 4 U is less than John's Pizza:

⇒ 14 + 1.25x < 10 + 1.5x

⇒ 4 + 1.25x < 1.5x

⇒ 4 < 0.25x

⇒ 0.25x > 4

Therefore, the inequality that could be solved to find the number of

toppings that makes Pizza 4 U less expensive than John's Pizza is:

• C) 0.25x > 4

Answer 2

C

Explanation:

Let x = number of toppings.

Pizza 4 U price:

14 + 1.25x

John's Pizza price:

10 + 1.5x

We want Pizza 4 U to be less expensive.

Pizza 4 U price < John's Pizza price

14 + 1.25x < 10 + 1.5x

-0.25x < -4

0.25x > 4

Answer: C