SOLUTION: Q20. A tour group split into two groups when waiting in line for food at a fast food counter. The first group bought 8 slices of pizza and 4 soft drinks for $29.40. The second grou

Question 1007773: Q20. A tour group split into two groups when waiting in line for food at a fast food counter. The first group bought 8 slices of pizza and 4 soft drinks for $29.40. The second group bought 7 slices of pizza and 6 soft drinks for $30.30. How much does one slice of pizza cost?
a. $2.26 per slice of pizza
b. $2.76 per slice of pizza
c. $2.33 per slice of pizza
d. $1.83 per slice of pizza

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Linear system of equations in two variables.
x for price of pizza slice
y for price of drink

Account for the number of items in a group;
Account for cost in a group;
Those are the equations. Solve for x and y.

The first group:

The second group:

The solutions for the two systems should be the same.
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
Q20. A tour group split into two groups when waiting in line for food at a fast food counter. The first group bought 8 slices of pizza and 4 soft drinks for $29.40. The second group bought 7 slices of pizza and 6 soft drinks for $30.30. How much does one slice of pizza cost?
a. $2.26 per slice of pizza
b. $2.76 per slice of pizza
c. $2.33 per slice of pizza
d. $1.83 per slice of pizza

Equations:
Cost of 1 slice of pizza: (CHOICE b.)
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