Posted by Katie on Thursday, April 17, 2008 at 8:07pm.
How would you set it up? Would it be (72/2) + (72/1.5)= (70/x)? we didn't do examples in class
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
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.
I am stuck on this one too :(
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