(1/3 x) * 5/100 + (1/2 x) * 5.5/100 = 735 Multiply numerators and denominators together on each side of the plus sign.
5x/300 + 5.5x / 200 = 735
Multiply both sides of the equation by 600 to get rid of the denominators. (5x/300)*600 + (5.5x/200)*600 = 735 * 600 (5x * 2) + 5.5x * 3 = 441000 10x + 16.5x = 441000 Combine the like terms on the left. 26.5 * x = 441000 Divide by 26.5 on both sides. x = 441000/26.5 x = 16641.51 = invested amount <<<<< answer
Check 1/3 * 5/100 * 16641.51 = 277.36 1/2 * 5.5/100*16641.51 = 457.63 The total = 735 which is what it should be.
