Respuesta :
Cost of the burger is $1.25 and the fries is $4.55
Step-by-step explanation:
- Step 1: Let the cost of a burger be x and that of fries be y. Form equations out of the given data.
x + 5y = 24 ------ (1)
6x + 2y = 16.60 ------ (2)
- Step 2: Multiply eq(1) by 6 to make the coefficients of x equal.
6x + 30y = 144
6x + 2y = 16.60
- Step 3: Subtract eq(2) from eq(1)
28y = 127.40
y = $4.55
- Step 4: Find x.
x + 5 × 4.55 = 24
x + 22.75 = 24
x = $1.25
Answer: each burger costs $1.25
Each fry costs 4.55
Step-by-step explanation:
Let x represent the cost of one burger.
Let y represent the cost of one fry.
The tennis coach took his team out for lunch and bought a burger and five fries for $24. This means that
x + 5y = 24- - - - - - - - - - - - -1
The players were still hungry so the coach bought 6 more burgers and two more fries for $16.60. This means that
6x + 2y = 16.6 - - - - - - - - - - - -2
Multiplying equation 1 by 6 and equation 2 by 1, it becomes
6x + 30y = 144
6x + 2y = 16.6
Subtracting, it becomes
28y = 127.4
y = 127.4/28
y = 4.55
Substituting y = 4.55 into equation 1, it becomes
x + 5 × 4.55 = 24
x + 22.75 = 24
x = 24 - 22.75
x = 1.25