Question

You treated 457 acres of corn land with 2.1 quarts per acre of an herbicide. The herbicide is sold in a 2%-gallon container that costs $93.80.a. How many containers of the herbicide were used?b. What was the cost of the herbicide?

Answer 1

Part a

We can do the folowing operation:

`457Ac\cdot(2.1qu)/(1Ac)=959.7qu`

Then we can use the following conversion: 1gal = 4 quarts

`959.7qu\cdot\frac{1\text{gal}}{4qu}=239.925\text{gal}`

We also know that the herbicide is sold in a 2% gallon container so we can do this:

`239.925\text{gal}\cdot0.2=47.985\text{container}`

Then is possible to see that is neccessary at least 48 containers

Part b

The price would be:

`48\cdot93.80=4502.4`