Question

Aileen is planning a huge graduation party for her

best friend, Melody. She decides to offer both beef
and chicken meals at the party. Each chicken meal
costs $4 and each beef meal costs $6. There will
be 150 people at the party, and the total cost of the
food is $700. How many chicken meals did Aileen
order?
A) 80
B) 100
C) 90
D) 110

Answer 1

B) 100

Explanation:

Let c represent the number of chicken meals ordered. Then 150-c is the number of beef meals ordered, and the total meal cost is ...

4c +6(150-c) = 700

-2c = -200 . . . . . . . . subtract 900, simplify

c = -200/-2 = 100

100 chicken meals were ordered.