SOLUTION: Two girls went to the store for rice and sugar. One girl bought 3 kilograms of sugar and 2 kilograms of rice for $3.25. The other girl bought 2 kilograms of sugar and 2 kilograms
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Question 32231: Two girls went to the store for rice and sugar. One girl bought 3 kilograms of sugar and 2 kilograms of rice for $3.25. The other girl bought 2 kilograms of sugar and 2 kilograms of rice for $2.50. Find the price per kilogram for both the sugar and the rice. Answer by Paul(988) (Show Source):
You can put this solution on YOUR website! LEt the price of sugar be x
Let the price of Rice be y
3x+2y=3.25
2y=3.25-3x
y=1.625-1.5x (subsitution)
Second set:
2x+2y=2.50
Subsitute for y:
2x+2(1.625-1.5x)=2.5
2x-3x=2.5-3.25
x=0.75
y=1.625-1.5(0.75)
y=0.5
Hence, the price of single kilo of sugar is $0.75 and the price of single kilo of rice is $0.50
Paul.
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