Question

If one bag of grass seed will cover 225 square feet, what is the minimum number of bags the haney family will need to cover their entire backyard?

Answer 1

Answer- 9 bags :)

Explanation:

Answer 2

9 bags

Explanation:

First we will need to calculate the area of their entire backyard, which has a shape of trapezium.

So the formula for the area of a trapezium is
`A=((a+b)*h)/(2)`

a and b are the lenghts of the parallel sides and h is the height.

From the picture
`a=10*5=50\\b=9*5=45\\h=8*5=40`

Then we plug into our formula

`A=((a+b)*h)/(2) =((50+45)*40)/(2) = 1200` square feet

To get the number of bags required we just simply divide the aree of their entire yard by the space that 1 bag covers. We get:

`(1900)/(225) =8.444...` bags

This is more than 8 bags so they will need 9 bags to cover their entire yard.