Question 697757: A pizza stand sells three different types of pizza: cheese, pepperoni, and vegetable. The table below shows the total revenue for three hours on a particular afternoon. Write a system of equations and solve to find the cost of each slice of pizza.
12-1 pm: cheese slices, 15; pepperoni slices, 20; vegetable slices, 10; revenue, $95.
1-2 pm: c, 18; p, 16; v, 12; r, $94.
2-3 pm: c, 14; p, 10; v, 8; r, $64.
Help me please?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A pizza stand sells three different types of pizza: cheese, pepperoni, and vegetable. The table below shows the total revenue for three hours on a particular afternoon. Write a system of equations and solve to find the cost of each slice of pizza.
12-1 pm:cheese slices, 15; pepperoni slices, 20; vegetable slices, 10; revenue, $95.
1-2 pm: c, 18; p, 16; v, 12; r, $94.
2-3 pm: c, 14; p, 10; v, 8; r, $64.
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Equations:
15c + 20p + 10v = 95
18c + 16p + 12v = 94
14c + 10p + 8v = 64
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I used a matrix function on my TI-84 to get the following:
c = $1.50
p = $2.50
v = $2.25
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Cheers,
Stan H.
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