Question

At a diner, Hailey’s lunch cost $6.75. Her sister’s lunch cost $5.95. After lunch they each had a frozen yogurt that cost the same amount. Together the girls spent a total of $17.40. How much did each frozen yogurt cost?

Answer 1

Froyo is $2.35

Let's call Hailey's lunch x, her sister's lunch y, and the froyo z.

x=6.75

y=5.95

z=?

x+y+2z= 17.40 Now subsitute:

6.75 + 5.95 + 2z = 17.40 Next combine like terms:

12.7 + 2z = 17.40 Then isolate z.

-12.7 -12.7

2z= 4.7

divide by 2 on both sides

z=2.35

froyo is $2.35

Answer 2

$2.35

Explanation:

17.40-5.95-6.75=4.70

4.70/2 = $2.35