SOLUTION: 3. Moving Costs Moving company A charges $80 plus $55 an hour to move households across town. Moving Company B charges $75 an hour for cross-town moves. For what lengths of ti

Question 484151: 3. Moving Costs
Moving company A charges $80 plus $55 an hour to move households across town. Moving Company B charges $75 an hour for cross-town moves. For what lengths of time is Moving Company B more expensive than Moving Company A? Write an inequality and solve for time t.
Show your work not just the final answer.

Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Let x be the number of hours
company A 80 + 55.00 x
Company B 0 + 75.00 x
company A < Company B
0 + 75.00 x < 80 + 55.00 x
0 + 75.00 x < 80 + 55.00 x
0 - 80 < 55 x -75 x
-80 < -20 x
4 < x
x should be greater than 4 hours for B to be more expensive

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