The grid provided is 10 x 10. So, because the oil is 40% of the liquid in the recipe, you should shade 40 / 100 squares of the grid to represent the 40%.
To find the number of cups of liquid that are not vegetable oil, we can set up a proportion.
40 / 100 = 10 / x
1000 = 40x
x = 25
There are 25 cups of total liquid in the recipe.
Hope this helps!! :)
Your system of equations is
Then the solution is
Your graphing calculator or any of several web sites can compute the inverse matrix for you.
The solution is (x, y, z) = (6, 4, 3).
S: 1,9
T: 4,9
U: 4.-1
sorry if this is wrong it’s been a while since i’ve done this.