SOLUTION: I can bake 25 pies in 4 hours. My mom can bake 35 pies in 5 hours. How long would it take both of us if we work together to make the same number of pies?

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Question 681010: I can bake 25 pies in 4 hours. My mom can bake 35 pies in 5 hours. How long would it take both of us if we work together to make the same number of pies?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
By " same number of pies, I guess they mean +25+%2B+35+=+60+ pies
Add their rates of working to get their rate working together
+25+%2F+4+%2B+35+%2F+5+=+60+%2F+t+
+25+%2F+4+%2B+35+%2F+5+=+60+%2F+t+
+6.25+%2B+7+=+60%2Ft+
+60%2Ft+=+13.25+
+t+=+60%2F13.25+
+t+=+4.528+
+.528%2A60+=+31.7+
It will take them 4 hrs 32 min to make 60 pies