The cost for an order of 1 slice of cheese pizza and 3 soda is 5.25 dollars.
Richard bought 3 slices of cheese pizza and 2 sodas for $8.75.
Jordan bought 2 slices of cheese pizza and 4 sodas for $8.50.
let
the cost of each cheese pizza = x
the cost of each soda = y
Therefore,
3x + 2y = 8.75
2x + 4y = 8.50
6x + 4y = 17.5
2x + 4y = 8.50
4x = 9
x = 9 / 4
x = 2.25
Therefore,
2(2.25) + 4y = 8.50
4.5 + 4y = 8.50
4y = 8.50 - 4.5
4y = 4
y = 4 / 4
y = 1
The cost of 1 slice of cheese pizza and 3 sodas is as follows:
2.25 + 1(3) = 3 + 2.25 = $5.25
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