Question

A shake at the Shake Shack costs 80 cents. The bill for 3 burgers and a shake was $4.40. How much does a burger cost?

a. $1.00
b. $1.20
c. $1.40
d. $1.60

Answer 1

The cost of a burger can be found by setting up and solving an equation using the given information.

Step-by-step explanation:

To solve this problem, we need to set up an equation. Let's assume that the cost of a burger is x. Since the bill for 3 burgers and a shake was $4.40, we can write the equation as:

3x + 0.80 = 4.40

Simplifying the equation:

3x = 4.40 - 0.80

3x = 3.60

Dividing both sides by 3:

x = 3.60/3

x = $1.20

Therefore, the cost of a burger is $1.20. So, the answer is option b. $1.20.