Question

3 sodas 2 popcorn =$21.55 5 sodas 4 popcorn = $39.75 how much are each itiem

Answer 1

1 soda cost $3.35 and the cost of one popcorn is $5.75.

Answer 2

x = price of 1 soda

y = popcorn price

3x+2y=21.55

5x+4y =39.75

per elimination

-2(3x+2y=21.55)→-6x-4y=-43.1

-6x-4y=-43.1

5x+4y=39.75

→-x=-3.35→x= 3.35

price of a soda $3.35

we calculate y:

3x+2y=21.55

10.05+2y=21.55

2y=21.55-10.05

y=$5.75

popcorn price $5.75