Kenneth's back yard is in the shape of rectangle with a length of 12 yards and width of 10 yards. A bag of grass seed costs $25.99 and covers 400 square feet. How much will Kenneth spend on grass seed to cover his back yard?

2

Jawapan

2016-03-12T19:35:13+08:00
Cost of a bag of grass seed= $25.99
can cover= 400 ft square yrd 2

length of the backyard= 12 yrd
width of the backyard= 10 yrd

*12yrd= 10.9728m
10.9728m= 36ft
*10yrd= 9.144m
9.144m=30ft

the area of the backyard =
36ft×30ft= 1080ft square yrd 2

amount of bag needed=1080ft/400ft
=2.7
=3 bags

1 bag=$25.99
3 bag=$25.99×3
=$77.97#
2016-03-12T19:35:15+08:00
12*10 = 120 square yards
120 square yards = 1080 square feet
$25.99 * (1080 / 400) square feet =
$25.99 * 2.7 bags =
$70.17(3)

If it is 3 bags:
$25.99 * 3 bags = $77.97