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Janice bought 3 hamburgers and 4 hotdogs for her cousins and paid $8.50. Brian bought 3 hamburgers and 6 hotdogs for his cousins and paid $10.50. How much did one hamburger cost?
A) 2.00
B) 1.50
C) 1.00
D) 0.75

Respuesta :

Answer:

Cost of each hamburger = $1.50

Step-by-step explanation:

Given:

Cost of 3 hamburger and 4 hotdog = $8.50

Cost of 3 hamburger and 6 hotdog = $10.50

Find:

Cost of each hamburger

Computation:

Cost of each hamburger = h

Cost of each hotdog = d

So,

3h + 4d = 8.50.....EQ1

3h + 6d = 10.50.......EQ2

EQ2 - EQ1

2d = 2

d = 1

3h + 4d = 8.50

3h + 4(1) = 8.50

3h = 4.50

h = 1.50

Cost of each hamburger = $1.50

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