Answer:
Step-by-step explanation:
Since both equations have 
, we can subtract the second equation from the first to try and solve for 
:
With this, we can plug the value back into the first equation to solve for 
:
Therefore, the solution is 
Answer:
1/6 or 2/12
Step-by-step explanation:
Answer:
4.9
Step-by-step explanation:
Option 1: profit per hour = 8(1) - 10 = 8 - 10 = $(-2)
Option 2: profit per hour = 16(1) - 12 = 16 - 12 = $4
Option 3: profit per hour = 10(1) - 5 = 10 - 5 = $5
Option 4: profit per hour = 14(1) - 8 = 14 - 8 = $6
Therefore option 1 is the least profitable investment.
