Shanice and jenny each improved their yards by planting grass sod and ornamental grass. they bought their supplies from the same store. shanice spent $280 on 14 feet of grass sod and 14 bunches of ornamental grass. jenny spent $251 on 12 ft of grass sod and 13 bunches of ornamental grass find the cost of one ft of grass sod and the cost of one bunch of ornamental grass.

Grass sod: $9

Ornamental grass: $11

Explanation:

In order to solve this we first have to set a term for each Grass sod and ornamental grass, we will use X and Y for each one:

Grass sod: X

Ornamental grass: Y

So we create two equations:

14x + 14y=280

12x+13y=251

We can solve this system of ecuations by elimination:

Now we just inser the value of Y into anyone of the two equations:

So we know that the grass rod costs 9 dollars and the ornamental grass 11

your parents i think this could be it

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este