mofor and darryl

Question

Mofor spent 88.00 on 10 feet of grass sod  and bunches of ornament grass.  Darryl spent 164.00 on 5 feet of grass sod and 12 bunches of ornamental grass.  What is the cost of one feet of grass sod and the cost of one bunch of ornament grass?

Answer 1

the cost of one feet of grass sod=x

the cost of one bunch of ornament grass=y

 

10x+y=88  --------->y=88-10x

 

5x+12y=164

 

5x+12(88-10x)=164

 

5x+1056-120x=164

 

-115x =-892

 

x=7.8

y=88-10(7.8)=10