Question

Medal for correct answer (:
Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 5 liters of natural oil for every 4 liters of synthetic oil. If 344 liters of synthetic oil are used, how many liters of Petrolyn oil will be made?

Answer 1

N=5/9, and S=4/9, ok?

Answer 2

ok

Answer 3

In general, S=4P/9, you know S, oyu can solve for P

Answer 4

where did you get the 9 from?

Answer 5

4+5=9, cuz in 9 liter of P, there is 4L of S and 5L of N according to your question

Answer 6

So it's 9? @caozeyuan

Answer 7

yes, he just gave you the answer.

Answer 8

774?