MATH SOLVE

3 months ago

Q:
# A restaurant serves sandwiches and salads. They sold 14 sandwiches and 14 salads for a total of $280 for lunch. In the evening, 42 sandwiches and 154 salads were sold for a total of $1400 .

Accepted Solution

A:

Answer:The cost of one sandwich is $15 and the cost of one salad is $5Step-by-step explanation:The question isFind out the cost of one sandwich and the cost of one saladLetx ----> the cost of one sandwichy ---> the cost of one saladwe know that[tex]14x+14y=280[/tex] -----> equation A[tex]42x+154y=1,400[/tex] -----> equation BSolve the system by graphingThe solution is the intersection point both graphsusing a graphing toolthe solution is the point (15,5)see the attached figurethereforeThe cost of one sandwich is $15 and the cost of one salad is $5