document.write( "Question 1158657: The time needed to make a photo enlargement varies jointly as its length and width. If it takes 12 seconds to make a 4\" by 6\" enlargement, how many seconds does it take to make one that is 8\" by 10\"? \n" ); document.write( "
Algebra.Com's Answer #781601 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! T=kLW \n" ); document.write( "12=k*6*4=24k \n" ); document.write( "k=1/2\r \n" ); document.write( "\n" ); document.write( "use k below \n" ); document.write( "T=0.5*10*8 \n" ); document.write( "T=40 seconds \n" ); document.write( " |