125,412 views
39 votes
39 votes
Colleen and Kara were ordering at Mc D's. Colleen ordered 4

hamburgers and 2 fries, paying $11. Kara ordered 4 hamburgers and 4
fries. She paid $14. What is the cost of one hamburger and what is the
cost of one order of fries?
Express Colleen's Order in terms of H and F.
1.
Express Kara's Order in terms of H and F.
Solve for H and F using the elimination method.

User Vladimir Makhaev
by
2.7k points

2 Answers

9 votes
9 votes
C = 4h and 2f , $11

K= 4h and 4f , 14

You add two more fries to K’s order so and added $3 unit price of F is $1.5

11 - 1.5 = 9.5 , 9.5/4 = 2.375 rounded to 2.38

Answer:

H = $2.38 F = $1.5
User Zackary Parsons
by
2.9k points
24 votes
24 votes

Answer: Fries = $1.50 Hamburger = $2

Explanation:

so since the first person payed 11 for 4 burgers and 2 fries and the second person got 2 more fries than the first person and spent 14 and there is a 3 dollar difference which 3 divided by 2 is 1.5 which means that the fires a 1 dollar and 50 cents. so 3 dollars subtracted from 11 equals 8 and 8 divided by 4 is 2 dollars leaving you with hamburgers being 2 dollars and fries being 1 dollar and 50 cents