The cost of a hot dog = $1.5 and cost of each chips pack = $0.75
Explanation:
Given,
2 hot dogs + a chips cost = $3.75
3 hot dogs + 2 chips pack cost = $6.00
To find, the cost of each hot dog and each packet of chips
Let us take,
Cost of a hot dog = x
Cost of each chips pack = y
According to the problem,
2x+y = 3.75 ------ eq 1
3x+2y = 6 ------- eq 2
4x + 2y = 7.5 [ multipling eq1 by 2] ----eq3
Now, subtracting eq2 from eq3 we get,
(4x+2y)-(3x+2y) = 7.5 - 6
or, x = 1.5
Putting the value of x = 1.5 in eq 1 we get,
y = 3.75 - 3 = 0.75
Hence, cost of a hot dog = $1.5 and
Cost of each chips pack = $0.75