Let the required number be x, then to create a proportion using the form

Thus, let 15 be

of x, then

Therefore, 15 is <span>

of</span> 1,000
Answer:6 rows per minute
Step-by-step explanation:
To clarify the systems of equations:


We already have opposite coefficients for y, so combine the two equations together:

Divide both sides by 5 to get x by itself:

Because we now know x, we can plug it into one of the equations.
We will plug this value into the first equation:


Add 24 to both sides.

Divide both sides by -1 to get y by itself.

Using elimination,
x = 2 and y = -30.
First, find the value of the expression within the parentheses, which is 8x. Since x=1/4, 8x=8/4 or 2. Next, multiply this value by -3. -3*2=-6