rice are $2.00 per lbs. and sugar are $4.00 per lbs. I bougth a total of 10 pounds of both for $27.00 How many pounds of each did i get?

1 answer

r+s=10
2r+4s=27
Multiply the first equation by -2 to cancel the r's.
-2r-2s=-20
2r+4s=27
2s=7
s=3.5
Put s back into either original equation to solve for r (the first one would be easier).
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