Respuesta :

Answer:

25 lb bag of fertilizer can cover 10 square feet of lawn.

Step-by-step explanation:

Given:

5 pounds of fertilizer cover = 2 [tex]ft^2[/tex] of the lawn

We need to find the 25 lb bag cover.

Solution:

Now we know that;

5 pounds of fertilizer = 2  [tex]ft^2[/tex] of yard.

1 lb of fertilizer = Number of [tex]ft^2[/tex] lawn covered by 1 lb fertilizer.

Using Unitary method we get;

Number of [tex]ft^2[/tex] lawn covered by 1 lb fertilizer = [tex]\frac{2}{5}\ ft^2[/tex]

Now we can say that;

1 lb of fertilizer =  [tex]\frac{2}{5}\ ft^2[/tex] of the yard

25 lb of fertilizer = Number of [tex]ft^2[/tex] lawn covered by 25 lb fertilizer.

Again by using Unitary method we get;

Number of [tex]ft^2[/tex] lawn covered by 25 lb fertilizer. = [tex]\frac{2}{5}\times 25 = 10 \ ft^2[/tex]

Hence 25 lb bag of fertilizer can cover 10 square feet of lawn.