4. A dirt bike requires 15 L of gas to be mixed with 4 L of oil. If you use 20 L of gas, need?

Read down below :)

Step-by-step explanation:

Rather than taking it on and overthinking it the way everyone else does, do it the simple way, like this:

15/3 = 5, right? and 5, when multiplied by 4, becomes 20, right? So divide 4 by 3, and then take that number, and muliply it by 4.

Like this: (4 / 3) * 4, and then you know that 5 L of gas requires 1.33e L of oil. So, like 5*4 = 20, so is 1.33e *4, the amount of oil in 20 L. In all, the answer is 5.33e, or or whatever your answer might have to be

y=4

Step-by-step explanation:

it has only one solution.