Burgers and Chips

Algebra Level 2

At a restaurant, 3 burgers and 4 chips cost $22.75. 2 burgers and 7 chips cost the same ($22.75). What is the price of 5 burgers and 2 chips?

26.75 29.75 25.5 27.25 28.5 24.25

Hill Taeudomkul by Hill Taeudomkul , 19, Thailand

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1 solution

Hill Taeudomkul
Mar 11, 2016

3b+4c=2275.
2b+7c=2275.

6b+8c=4550.
6b+21c=6825.

-13c=-2275.
13c=2275.
c=175

3b+(4x175) =2275.
3b+700=2275.
3b=1575.
b=525.

5b+2c.
(5x525) + (2x175).
2625+350.
2975.

0 Helpful 0 Interesting 0 Brilliant 0 Confused

The procedure in your solution is correct but you used cents instead of dollars. The answer is in dollars. The answer in your solution must also be in dollars. In the last part of your solution, you did use the equal sign, it is better if you use equal sign.

A Former Brilliant Member - 4 years, 5 months ago

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