document.write( "Question 98970: if steven can make 20 drinks in 5 minutes, sue can make 20 drinks in 10 minutes and jack can make 20 in 15 minutes. How much time will it take all three of them working together to make 20 drinks \n" ); document.write( "
Algebra.Com's Answer #72024 by checkley71(8403) ![]() You can put this solution on YOUR website! 20/5=4 drinks per minute. \n" ); document.write( "20/10=2 drinks per minute. \n" ); document.write( "20/15=4/3 drinks per minute. \n" ); document.write( "4+2+4/3=7 1/3 or 22/3 drinks per minute working together. \n" ); document.write( "20/(22/3)=60/22=2.73 minutes to make 20 drinks when they work together. \n" ); document.write( " |