Question

carla can buy 4 sandwiches and 3 cup of coffee for $20 and Steve can buy 3 sandwiches and 4 cup of coffee for $18.50 how much does one cup of coffee cost

Answer 1

One cup of coffee costs 2 dollars

Step-by-step explanation

Let the cost of 1 sandwich be s dollars

Let the cost of a cup of coffee be c dollars

Carla can buy 4 sandwiches and 3 cups of coffee for 20 dollars

4s + 3c = 20 ............. equation 1

Steve can buy 3 sandwiches and 4 cups of coffee for 18.50 dollars

3s + 4c = 18.50 .......... equation 2

We can then bring the two equations together

4s + 3c = 20

3s + 4c = 18.50

Solving this equation simultaneously, we obtain that

s = 3.50

c = 2

Hope this Helps!!!