Posted by **Katie** on Thursday, April 17, 2008 at 8:07pm.

A new photocopier can make 72 copies in 2 min. When an older photocopier is working, the two photocopiers can make 72 copies in 1.5 min. How long will it take the older photocopier working alone to make 70 copies?

- Algebra -
**Katie**, Thursday, April 17, 2008 at 8:10pm
How would you set it up? Would it be (72/2) + (72/1.5)= (70/x)? we didn't do examples in class

- Algebra -
**Damon**, Thursday, April 17, 2008 at 8:45pm
new --> 36 copies/min

old --> n copies/min

new + old = (n+36) copies/min

(n+36)copies/min * 1.5 min = 72 copies

1.5 n + 54 = 72

1.5 n = 18

n = 12 copies/min

12 copies/min * t = 70 copies

t = 35/6 = 5.83 min

- Algebra -
**Damon**, Thursday, April 17, 2008 at 8:49pm
I wrote out all those copies/ min and such for a reason. In problems like this if you keep track of the units, it is hard to go far off course.

- Geometry -
**8===D**, Monday, April 22, 2013 at 5:55pm
I am stuck on this one too :(

## Answer this Question

## Related Questions

- Algebra - Word problem: A new photocopier can make 72 copies in 2 min. When the ...
- ALGEBRA - A new photocopier can make 72 copies in 2 min. When an older ...
- algebra - A certain office can purchase a photocopier for $5600 with a ...
- Math - A photocopier copies 80 pages in 4 minutes. How much time will he take to...
- Calculus - a local office supply store has an annual demand for 50,000 cases of...
- math - jenny's company has two photocopying machines, one of which is older and ...
- algebra1 - the school bought a new copy machine which makes 20 copies per minute...
- algebra1 - the school bought a new copy machine which makes 20 copies per minute...
- Math - At Kinko's, Sean made 56 copies costing $16. Color copies cost $0.75 each...
- Math - Can you please help me set up this equation? Copies at the local library ...

More Related Questions