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# Assignment help 4708

Question:Be sure to clearly identify the variable (with a description of what it represents), show the initial equation, and explain your solution and final response. Must change to your own numbers.

1. Examp.:
2. Spring Cleaning! A carpet cleaning service charges a flat fee of \$30.00 and a per room fee of \$25.00. If my bill was \$180 before taxes, how many rooms did I have cleaned?
3. I am being asked to find the number of rooms that were cleaned.
4. Let r = the number of rooms being cleaned.
5. If r is the number of rooms being cleaned, then \$25.00r would be the cost of cleaning r rooms.
6. Flat fee + cost of cleaning r rooms = total bill
7.  \$30 + \$25r = \$180, Now solve the equation, 30 + 25r = 180, r = 180 – 30, 25r =150, r = 6

Since r is the number of rooms that were cleaned, you know that I had 6 rooms cleaned.

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