an investor invested a total of $2,900 in two mutual funds. One fund earned a 6% profit and the other earned a 4% profit. If the investors total was $136, how much was invested in each mutual fund?

$2000 at 6%$900 at 4%

Step-by-step explanation:

Let the funds be:

x at 6% and 2900 - x at 4%

Then the earning is:

x*0.06 + (2900 - x)*0.04 = 1360.06x + 116 - 0.04x = 1360.02x = 20x = 20/0.02x = 2000

So $2000 was invested at 6% and $900 at 4%

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.