Petrolyn motor oil is a combination of natural oil and synthetic oil. it contains 5 liters of natural oil for every 3 liters of synthetic oil. if 255 liters of natural oil are used, how many liters of petrolyn oil will be made?

153 liters of Petrolyn oil

Step-by-step explanation:

This is a proportion to set this up you do the following:

Nat/Syn = Nat/Syn ; 5/3 = 255/Syn

Then you solve this equation by cross multiplication.

(255*3)/5 = Syn

153 = Synthetic(Petrolyn oil)

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or