# Equation

Jacqueline is in the business of editing computer software. She calculated the fixed ovehead costs to be \$50.00 per day.

(a) If she charges \$75.00 per hour, how many hours must she work per monthe to break-even

(b) In a year, she made a profit of \$65 000.00. How many hours of editing does that represent to the nearest one?

[Tell me the equations of both, but DON&#39;T SOLVE IT, so i can solve it myself.]

### 1 個解答

• 最佳解答

Jacqueline is in the business of editing computer software. She calculated the fixed ovehead costs to be \$50.00 per day.

(a) If she charges \$75.00 per hour, how many hours must she work per monthe to break-even

The calculation is based on 1 month = 30 days

Let the number of hour she need to work in a month be x.

Income

= \$75(x)

Outcome

= \$50(30)

So the equation is

\$75(x) = \$50(30)

The following steps are hidden (you can highlight or press Ctrl-A to check)

75x = 1500

x = 20

So she has to work 20 hours in a month.

============================================================

(b) In a year, she made a profit of \$65 000.00. How many hours of editing does that represent to the nearest one?

Let the number of hour she need to work in a year be x.

Income

= \$75(x)

Outcome

= \$50(365)

So the equation is

\$75(x) - \$50(365) = \$65000

The following steps are hidden (you can highlight or press Ctrl-A to check)

75x - 18250 = 65000

75x = 83250

x = 1110

So she has to work 1110 hours in the year.