Answer:
134.73
Step-by-step explanation:
Solving for m:
243 = m + 108.27
243 - 108.27 = m + 108.27 - 108.27
134.73 = m
By substitution.
Get y or x alone then insert it into the other equation solving for one of the two variables. After that substitute ur answer into one of the equations then solve.
What is the change in the total cost for each book printed?
$25
What is the cost to get started (before any books are printed)?
$1250
Answer:
310 - 3w
310 - 3(80) = $70
Step-by-step explanation:
310 - 30w
w = 8
310 - 30(8)
310 - 240
= 70