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Cody bought two burgers and two small fries for $14. Mary bought three burgers and four small fries for $23. How much does one burger cost?

Cody Bought Two Burgers And Two Small Fries For 14 Mary Bought Three Burgers And Four Small Fries For 23 How Much Does One Burger Cost class=

Sagot :

Debmc7idn
b = cost of burger
f = cost of fries

2b + 2f = 14, so
b + f = 7
We’ll solve for f in terms of b:

f = 7-b

Then substitute that in to our other equation (what Marty bought) to get a numerical value for b:

3b + 4f = 23
3b + 4(7-b) = 23
3b + 28 -4b = 23
-b = -5
b = 5

Then calculate f:
f = 7-b
f = 7-5 = 2

Burger $5
Fries $2

Please lmk if you have questions.
Shmack4000idn

Answer:

the same as these 5 points, $5 for a burger

Step-by-step explanation:

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