Question

Carmony Computer Consultants charges a $255 fee plus $85 per hour for its work. Holliday Computer Work charges a flat rate of $115 per hour. For how many hours of work is it cheaper to hire Carmony?

Answer 1

Answer: Let's call the number of hours worked h.

The cost of hiring Carmony is $255 + $85h.

The cost of hiring Holliday is $115h.

We want to find the number of hours h such that $255 + $85h is less than $115h.

We can write this as:

$255 + $85h < $115h

Subtracting $115h from both sides:

$255 < $115h - $85h

Combining like terms:

$255 < $30h

Dividing both sides by $30:

8.5 < h

So, it is cheaper to hire Carmony for more than 8.5 hours. For 8.5 hours or less, it is cheaper to hire Holliday.

Explanation: