0.4 * 3% = 1.2% [mutual funds]
0.25 * 7% = 1.75% [real estate]
0.35 * 11% = 3.85% [stocks]
Sum them 1.2% + 1.75% + 3.85% = 6.8% average growth
40 * 3% = 1.2
25 * 7% = 1,75
35 * 11% = 3.85
Add these up gives 6.8% growth and the average growth would be 6.8/3 = 2.26%
If this is your homework then I can't help you, but I'll show you how it's done. A percent just means PER CENT, PER HUNDRED. So 40% is 0.40, you use algemabra by doing x = .3(.40)+.40
Joshua invested 40% of his money in mutual funds, 25% in real estate, and the balance in stocks. If the value of the money that he invested in mutual funds, real estate, and stocks grew by 3%, 7%, and 11% respectively, what was the average growth on his total investment?
