SOLUTION: The Mcbeth's front yard measures 16 yards in length and 12 yards in width. A 1-pound container of weed killer sells for $4 and covers an area of 1000 square feet. How much will it

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Question 981036: The Mcbeth's front yard measures 16 yards in length and 12 yards in width. A 1-pound container of weed killer sells for $4 and covers an area of 1000 square feet. How much will it cost the Mcbeth's to purchase enough weed killer for their entire front yard?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!

First,  you should know that one yard is 3 feet  (1 yard = 3 ft).

Second, calculate the area of the Mcbeth's front yard in square feet.  It is

A = (16*3)*(12*3) = 1728 ft%5E2.

Third,  calculate how much of weed killer sells do you need to cover this area.  To find this amount,  use the proportion

1728%2F1000 = x%2F1,

where  x  is the unknown amount of weed killer sells in pounds.

It gives

x = 1728%2F1000 = 1.728 pounds of weed killer sells.

The cost for this amount is   $4.00 x 1.728 = $6.91.

It is the answer to your question.