Posted by **Paige** on Wednesday, March 2, 2011 at 6:26pm.

just checking to see if i have this problem correct

Sammy can cut wood twice as fast as Joe. When they both work together, it takes them 4 hrs. how long would it take them to do the job alone?

4/x +4/x+2 = x^2+2

4x+4x+8= x^2+2

8x+8= x^2+2

x^2-6x-8=0

(x-4)(x+2)

x=4 x=-2 since i can't use a -2 i have to put in a 4

x+2=4+2=6

Sammy =6 hours

6x2=12

Joe = 12 hours

Thanks

## Answer this Question

## Related Questions

- Algebra 2 word problem - just checking to see if i have this problem correct ...
- college algebra - Just che king to see if I did this right. f(x)=(x-4)^2+6 Graph...
- Algebra 2 - Just checking to see if I got this right. Thanks, (3x^4--8x^2 -3x-3...
- Algebra - Joe and Theresa want to paint their living room. From past experience...
- statistics - My problem is to graph a system of inequalities (which ive done) ...
- Math. Just checking - Just making sure because im doing h.w over scientific ...
- Math - I haven't done factoring in ages I'm trying to factor this X^2 - 2X + 8 ...
- Physics - 1. if a 0.05kg coin is hanging from 22m above the ground: a. If you ...
- Algebra 1 - Entomology is the scientific study of insects. Patty, Ronny and ...
- chemistry - balance this equation. prove that it obeys the law of conservation ...