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