Problema Solution
One babysitter charges $12/hour. Another babysitter charges $10 per job plus an hourly rate of $7/hour. After how long will the two babysitters make the same amount?
Answer provided by our tutors
Let 'x' represent the time in hours.
For x hours the first babysitter will charge: 12x dollars
For x hours the second babysitter will charge: 10 + 7x dollars
Since they will make same amount of money we can write:
12x = 10 + 7x
........
click here to see the equation solved for x
........
x = 2 hr
After 2 hours the two babysitters will make the same amount.