Problema Solution
Your family goes to a restaurant for dinner. There are 6 people in your family. Some order the chicken dinner for $14.80 and some order the steak dinner for $17. If the total bill was $91, how many people ordered each type of dinner?
Answer provided by our tutors
x = number who order chicken
y = number who order steak
x+y=6
14.8x + 17y =91
14.8x + 17*(6-x) = 91
-2.2x +102 = 91
-2.2x = -11
x = 5
y = 6-x = 1
5 order chicken
1 orders steak