document.write( "Question 221073: hannah can paint a room in 8hrs. Miley can paint it in 10hrs. working together, how many hrs would it take them to paint the room? \n" ); document.write( "
Algebra.Com's Answer #165865 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! if T is their combined time, then the FRACTION painted by Hannah is T/8 and the FRACTION painted by Miley is T/10 \n" ); document.write( "___ the FRACTIONS add to 1 (the WHOLE room)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "T/8 + T/10 = 1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "multiplying by 40 (LCD) ___ 5T + 4T = 40 ___ 9T = 40 ___ T = 40/9 (about 4.5 hr) \n" ); document.write( " |