SOLUTION: Machine A can print 20 posters in a minute and machine B can print 15 posters a minute. How long will it take both of machines to print 945 if they work together? A)23 B)27 C)29

Algebra ->  Algebra  -> Circles -> SOLUTION: Machine A can print 20 posters in a minute and machine B can print 15 posters a minute. How long will it take both of machines to print 945 if they work together? A)23 B)27 C)29      Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   

Question 621379: Machine A can print 20 posters in a minute and machine B can print 15 posters a minute. How long will it take both of machines to print 945 if they work together?
A)23
B)27
C)29
D)31
E)33
Answer by ewatrrr(10682) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Machine A can print 20 posters in a minute and machine B can print 15 posters a minute.

Note: together A and B can do 35 Posters/min

How long will it take both of machines to print 945 if they work together? 945%2F35+=+27+min