Randi nrrds to mow her lawn. The mixture requires 5 gallons of gas for every 2 gallons of oil. How much oil will she need for 8 gallons of gas? Your answer should be in tenths.

Answer 1

To solve this problem, we can set up a proportion. Let "x" represent the amount of oil needed for 8 gallons of gas.

For the given mixture, we know that 5 gallons of gas corresponds to 2 gallons of oil.

So, the proportion can be set up as:

5 gallons of gas / 2 gallons of oil = 8 gallons of gas / x gallons of oil

Cross-multiplying, we get:

5 * x = 2 * 8
5x = 16
x = 16/5

Therefore, Randi will need 16/5 gallons of oil for 8 gallons of gas.

In tenths, this can be written as 3.2 gallons of oil.