SOLUTION: Rice costs $X per kilogram Potatoes costs $(x+1) per kilogram The total costs of 12kg of rice and 7kg of potatoes is $31.70 Find the cost of 1kg of rice.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Rice costs $X per kilogram Potatoes costs $(x+1) per kilogram The total costs of 12kg of rice and 7kg of potatoes is $31.70 Find the cost of 1kg of rice.      Log On


   



Question 1011332: Rice costs $X per kilogram
Potatoes costs $(x+1) per kilogram
The total costs of 12kg of rice and 7kg of potatoes is $31.70
Find the cost of 1kg of rice.

Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
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12kg($x/kg)+7kg($(x+1)/kg=$31.70
$12x+$7x+$7=$31.70
$19x=$24.70
x=$1.30
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ANSWER: Rice cost $1.30/kg