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

Solution

Part a

We can do the folowing operation:

$457Ac\cdot\frac{2.1qu}{1Ac}=959.7qu$

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:

$48\cdot93.80=4502.4$