SOLUTION: sarah can shovel her driveway in 35 minutes. John can do the same job in 30 mintues. If they work together how many minutes would it take to shovel the driveway. I got as far at

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Question 567791: sarah can shovel her driveway in 35 minutes. John can do the same job in 30 mintues. If they work together how many minutes would it take to shovel the driveway.
I got as far at t/30+t/35=1
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
OK so far, now add the two fractions:
t%2F35%2Bt%2F30+=+1
%2830t%2B35t%29%2F1050+=+1 Simplify.
65t%2F1050+=+1 Multiply both sides by 1050.
65t+=+1050 Divide by 65.
t+=+16.154minutes.