Can someone help me with math?

1.)    27 cups of sparkling water

2.)    7 1/4 cups of grape juice

3.)    67 cups of water and 133 cups grape juice

Step-by-step explanation:

1 1/2 sparkling - 3/4 grape ( my reference ignore this line... )

9 quarts grape juice = 54/4    

1 1/2 = 3             54 divied by 3 = 18         18*3/2 = 54/2 =  27 quarts

15/4 = 3 3/4  = 7 1/4 cups of grape juice

1 1/2*20 = 30 * 3 = 90  ( 60 cups water so far) + 6 = 99

3/4* 4 = 3* 30 = 90 ( 120 cups so far )= 12 =99

thats not a system of equations, that is a solution

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form