Answer:
Step-by-step explanation:
Substitution method can be applied in four steps.
Solve one of the equations for either x = or y = .
Substitute the solution from step 1 into the other equation.
Solve this new equation.
Solve for the second variable. ...
Step 1: Solve one of the equations for either x = or y =
First we need to find 75% of $450, so 450x.75=337.5
to find the markup we have to add 450+337.5 to get $787.5.
I think the ratio of a vertical change to the horizontal change is called slope.
Answer: 1 unit to the left, and 3 units down
Step-by-step explanation: