Andy is mowing grass. The mixture requires 5 gallons of gas for every 2 gallons of oil. How much oil is needed for 8 gallons of gas? Answer should be in tenths
To find out how much oil is needed for 8 gallons of gas, we can set up a proportion based on the given ratio.
We know that 5 gallons of gas require 2 gallons of oil.
So, for every 5 gallons of gas, there are 2 gallons of oil.
And for every 1 gallon of gas, there are 2/5 gallons of oil.
Now, let's find out how much oil is needed for 8 gallons of gas:
8 gallons of gas = 8 * (2/5) gallons of oil
= 16/5 gallons of oil
Converting this fraction into tenths:
16/5 = 3.2
Therefore, 8 gallons of gas requires 3.2 gallons of oil.
To find out how much oil is needed for 8 gallons of gas, we need to use the ratio of 5 gallons of gas for every 2 gallons of oil.
First, we need to calculate the number of "sets" of 5 gallons of gas and 2 gallons of oil in 8 gallons of gas.
Divide 8 gallons of gas by 5 gallons of gas per set:
8 gallons gas / 5 gallons gas/set = 1.6 sets
Since we have calculated the number of sets, we can now determine the amount of oil needed for 8 gallons of gas.
Multiply the number of sets by 2 gallons of oil per set:
1.6 sets x 2 gallons oil/set = 3.2 gallons of oil
So, 8 gallons of gas requires 3.2 gallons of oil.
To find out how much oil is needed for 8 gallons of gas, we can set up a proportion based on the given information.
According to the mixture, we have:
5 gallons of gas : 2 gallons of oil = 8 gallons of gas : x gallons of oil
To find x, we can cross-multiply and solve for x:
5/2 = 8/x
Cross-multiplying, we have:
5x = 16
Dividing both sides of the equation by 5:
x = 16/5
Converting x to tenths, we get:
x = 3.2
Therefore, 8 gallons of gas require 3.2 gallons of oil.