how many of its remaining 20 games must it win to raise its winning percentage to 65%?
: Let x = no. of remaining games that need to be won for a winning percent of 65 : Find how many game already lost: .4(40) 16 games lost then 40 – 16 = 24 games won so far : Total games played 40 + 20 = 60 ; Games won/total games: = .65 multiply both sides for 60 x + 24 = 60 * .65 x + 24 = 39 x = 39 – 24 x = 15 games of the remaining games need to be won : Check the percentage, 24 + 15 = 39 total games won = .65 *100 = 65% : : 2. Write an equation for each statement; The sum of 3 numbers is 94, x + y + z = 94 : the first number is 3/5 of the second number x = y : the second number is 4/3 of the third.
