Answer:
Step-by-step explanation:
Let the equal number of hours be represented by variable H;
The two equations will be as follows;
Jack; 40 +30H
Mark; 50 +25H
Next, equate them;
40 + 30H = 50 + 25H
30H - 25H = 50 - 40
5H = 10
H =10/5
H = 2hrs
Therefore, they charge the same amount at 2 hrs.
B.) The amount charged;
Replace the variable H in any of the two equations above with 2 to solve for the amount.
Equation 40+30H = 40 + (30*2)
=40 + 60
= $100
Answer:
1962/18=109.
Division sign
Step-by-step explanation:
Answer:
Approx. 2140.16 cubic centimeters
Step-by-step explanation:
Answer:
55° + 125° = 180° and 60° + 120° = 180°
This are all supplements. We need two numbers to have the exact number to get the 180 degree.
