Jana and her friend bought 4 hamburgers, 3 orders of fries, and 2 milk shakes for $3 each. They paid for the food with $20. Whic
2 answers:
For this case we have the following variables:
h: Cost of each hamburger bought by Jana and her friend
f: Cost of each order of potato chips bought by Jana and her friend
b: Cost of each milkshake
If you bought 4 hamburgers, 3 orders of potatoes and 2 milkshakes, you have a cost of:
It is known that each shake costs $ 3, so$
Substituting we have:
Thus, the total cost is given by:
Answer:
Option C
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