SOLUTION: Petrolyn oil is a combination of natural oil and synthetic oil- 5 parts natural oil for every 3 parts of synthetic oil. How many liters of natural oil are contained in 560 liters o

Question 464772: Petrolyn oil is a combination of natural oil and synthetic oil- 5 parts natural oil for every 3 parts of synthetic oil. How many liters of natural oil are contained in 560 liters of Petrolyn oil?
Found 2 solutions by josmiceli, lwsshak3:
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
You need to find:
(parts of natural oil)/(parts of Petrolyn oil)
That equals:

For liters of Petrolyn oil,

Multiply both sides by

350 liters of natural oil are contained in 560 liters of Petrolyn oil

Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Petrolyn oil is a combination of natural oil and synthetic oil- 5 parts natural oil for every 3 parts of synthetic oil. How many liters of natural oil are contained in 560 liters of Petrolyn oil?
...
let x=liters of natural oil
560-x=liters of synthetic oil
..
x/(560-x)=5/3
3x=2800-5x
8x=2800
x=350
ans:
350 liters of natural oil are contained in 560 liters of Petrolyn oil
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