The fuel for certain two cycle engine is a mixture of 8 parts gasoline and 2 parts oil. How many gallons of gasoline are needed to make 2o gallons of fuel ?

Question

Please solve this one in detail with an explanation for me ^^

Answer 1

x represents the number of parts of each

8x + 2x + 20

10x = 20

x = 2

So 2(8 parts) or 16.

Answer 2

16 gallons of gasoline required for 20 gallons of fuel. 4 gallons of of oil required.