When visiting friends in a state that has no sales tax, two families went to a fast-food restaurant for lunch. The Browns bought 4 cheeseburgers and 3 medium fries for $16.53. The Greens bought 5 cheeseburgers and 4 medium fries for $21.11. Using c for the cost of a cheeseburger and f for the cost of medium fries, write a system of equations that models this situation. The Greens said that since their bill was $21.11, each cheeseburger must cost $2.49 and each order of medium fries must
cost $2.87 each. Are they correct?Justify your answer. Using your equations, algebraically determine both the cost of one cheeseburger and the cost of one order of medium fries.

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Respuesta :

Sahand7 Sahand7 · Answer 1 · 2020-04-11T01:40:09+02:00

Answer:

No, greens are not correct

Cheeseburgers = $2.79

Fries = $1.79

Step-by-step explanation:

Greens - 5c + 4f = $21.11

Browns - 4c + 3f = $16.53

If each cheeseburger = $2.49 and

each medium fries = $2.87, then

5 x (2.49) + 4 x (2.87) = $23.93

$23.93 is not equal to $21.11

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To find the cost of one cheeseburger and one order of medium fries, you must multiply by a number that one of the variables cancel

Greens -

jayilych4real jayilych4real · Answer 2 · 2022-03-21T16:23:32+01:00

Based on the given information, we can conclude that:

This refers to the area of maths where letters and symbols are used to represent numbers.

Based on the given parameters:

To calculate for Greens:

To calculate for Browns:

Given that one cheeseburger = $2.49 and

One medium fries = $2.87, then

5 x (2.49) + 4 x (2.87) = $23.93

$23.93 is not equal to $21.11

Therefore, greens are not correct