SOLUTION: Please help me solve this equation: A risograph machine can finish 100 pages in 1 minute. How many books of 250 pages can the machine copy in 20 minutes ?

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Please help me solve this equation: A risograph machine can finish 100 pages in 1 minute. How many books of 250 pages can the machine copy in 20 minutes ?       Log On


   



Question 697626: Please help me solve this equation: A risograph machine can finish 100 pages in 1 minute. How many books of 250 pages can the machine copy in 20 minutes ?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = number of books of +250+ pages
that the machine can copy in +20+ min
Note that +250x+ would be the number of pages
that the machine can copy in +20+ min
--------------
The machine's rate of copying is +100%2F1+ pages / min
I can say that
+100+%2F+1+=+250x+%2F+20+
This is just ( pages/min = pages/min )
+2000+=+250x+
+x+=+8+
The machine can copy 8 books of 250 pages in 20 min
check:
+8%2A250+=+2000+
+2000+%2F+20+=+100%2F1+
OK