Randi needs 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?
To find out how much oil Randi needs, you can set up a proportion:
5 gallons of gas / 2 gallons of oil = 8 gallons of gas / x gallons of oil,
where x represents the amount of oil needed for 8 gallons of gas.
To solve for x, you can cross-multiply:
5 * x = 8 * 2,
5x = 16.
Dividing both sides of the equation by 5 gives us:
x = 16 / 5 = 3.2.
Therefore, Randi will need 3.2 gallons of oil for 8 gallons of gas.
To determine how much oil Randi will need for 8 gallons of gas, we can set up a proportion based on the given ratio.
The ratio states that the mixture requires 5 gallons of gas for every 2 gallons of oil.
Let's represent the needed oil as "x".
The proportion can be set up as: 5/2 = 8/x.
To solve for "x", we can cross-multiply and then solve for "x".
5x = 2 * 8
5x = 16
Divide both sides of the equation by 5 to solve for "x".
x = 16/5
Therefore, Randi will need 16/5 gallons of oil for 8 gallons of gas, which is approximately 3.2 gallons.
To determine how much oil Randi will need for 8 gallons of gas, we can use the ratio provided in the problem, which states that for every 5 gallons of gas, 2 gallons of oil are needed. Let's set up a proportion to solve for the amount of oil required:
5 gallons of gas / 2 gallons of oil = 8 gallons of gas / x gallons of oil
To find the value of x, we can cross multiply:
5 * x = 8 * 2
5x = 16
Now, solve for x by dividing both sides of the equation by 5:
x = 16 / 5
x = 3.2 gallons of oil
Therefore, Randi will need 3.2 gallons of oil for 8 gallons of gas.