Question

To mix weed killer with water correctly it is necessary to mix 20 teaspoons of weed killer with 4 gallons of water how many gallons of water are needed to mix with the entire box of it contains 45 teaspoons of weed killer

Answer 1

First, let's make a proportion for the problem,


`(20t)/(4g) = (45t)/(?g)`

T= teaspoon, g= gallon


`20(x) = 45`

So 20 × what equals 45??

Simply divide both sides by 20,


`x = (9)/(4) = 2.25`

The above number(s) is what we will × 20 and 4 by.


`(20t)/(4g) * (2.25)/(2.25) = (45t)/(9g)`

So for 45 teaspoons you'll need 9 gallons.

Answer 2

I would find out how many teaspoons are needed per gallon of water. 20 divided by 4 is 5. So 1 gallon of water needs to be mixed with weed killer for the same ratio. 45 teaspoons divided by 5 is 9. So you will need 9 gallons of water to 45 teaspoons weed killer for the same ratio.