First one has parentheses, second one doesn't.<span />
X-0.15x = 649
Solve for x, and the answer is 763.53
Noreen made 8 and 2/3 cups which after solving becomes 8.666
now the guest ate 3/4 which means 3/4 of 8.66 which is 6.50 which means the guest ate 6 1/2 cups
(70x10)+(6x1)+(4x1/10)+(2x1/100)+(9x1/1000)