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Chapter 1: Q14. (page 12)

Write and evaluate an expression to find how much the cost of the food.

Short Answer

Expert verified

The total cost of food =$16.75.

Step by step solution

01

Step 1. Given information.

Koto purchased food for herself and her friends.

Cost of cheese burgers = $2.25

Cost of French fries = $1.25

Cost of 4 drinks = $4.00

02

Step 2. Define the variables.

Consider the number of cheeseburgers being x, the number of French fries is y.

Then,

Cost of x cheeseburgers = $2.25x

Cost of y French fries = $1.25y

Assume the total cost of the food be C.

03

Step 3. Write the equation.

The equation that represents the total cost of food is given in below.

C=2.25x+1.25y+4

04

Step 4. Solve the equation.

Substitute 4 for xand 3 for yin the equation C=2.25x+1.25y+4.

C=2.25x+1.25y+4=2.254+1.253+4=9+3.75+4=$16.75

Therefore, the total cost for the food is $16.75.

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