document.write( "Question 543511: john can bake a cake in 10 minutes and ray can bake a cake and 7 minutes. how fast can they bake a cake together? \n" ); document.write( "
Algebra.Com's Answer #354838 by richwmiller(17219)\"\" \"About 
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The cake needs more time to bake than 7 or 10 minutes.
\n" ); document.write( "x/7+x/10=1
\n" ); document.write( "10x+7x=70
\n" ); document.write( "17x=70
\n" ); document.write( "x=70/17
\n" ); document.write( "x=4.11764706\r
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