Question 388520
at a pizza shop, two small pizzas, a liter of soda, and a salad cost $14;
one small pizza, a liter of soda, and three salads cost $15; 
and three small pizzas and a liter of soda cost $16. 
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What is the cost of one small pizza? 
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Equations:
2p  + d  + s = 14
p   + d  +3s = 15
3p +  d  + 0 = 16
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Use any method you know to solve to get:
p = $5 (price of one pizza)
d = $1 (price of one soda)
s = $3 (price of one salad)
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Cheers,
Stan H.
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