Posted by **Sarah** on Friday, February 8, 2008 at 9:04pm.

1. Juanita has 180 feet of fencing that she intends to use to build a rectangular play area for her dog. She wants the play area to enclose at least 1800 square feet. What are the possible widths of the play area?

2. A bicycle maker sold 300 bicycles last year at a profit of $300 each. The maker wants to increase the profit margin this year, but predicts that each $20 increase in profit will reduce the number of bicycles sold by 10. How many $20 increases in profit can the maker add in and expect to make a total profit of at least $100,000?

3. The current in a circuit is amps (I), and the impedance is ohms (Z). What is the voltage? (Hint: use the formula

4. Write two complex numbers whose product is 10.

- Algebra -
**bobpursley**, Friday, February 8, 2008 at 9:22pm
4. what about 3+i, 3-i ? or -sqrt10 i, +sqrt10 i

or 1 + 3i,1-3i

on 1. You know the perimeter (180=2L+2w) and the area 1800<L*W

Solve by substution.

## Answer this Question

## Related Questions

- Algebra - 1. Juanita has 180 feet of fencing that she intends to use to build a ...
- Math - Corinda has 400 feet of square fencing to make a play area. She wants the...
- Math - 1. A man has 22 feet by 26 feet rectangular lot that he will use for ...
- math - Roger just got a puppy for his birthday. He and his mother will build a ...
- College Algebra - Rita has 88 feet of fencing. She wants to use this fencing to ...
- 5th grade math - mrs. watterson wants to fence in an area for her dog. she has ...
- Math - Brenda is building a rectangular pen for her dog. She has enough fencing ...
- geometry - ye has 44 feet of fencing to enclose a rectangular garden. She wants ...
- math 099 - a rancher wants to use 300 feet of fencing to enclose a rectangular ...
- Algebra - Word Problems: 1. A farmer has 2400 feet of fencing and wants to fence...

More Related Questions