Assuming a 4% (0.04) interest rate, $300 invested today in a savings account today will be worth $312 in one year. what will that amount be in 2 and 3 years, and what is the total interest you will earn at the end of three years.

in 2 years the savings account will show: $324.48

in 3 years the savings account will show: $337.46

so the interest earned in these three years would be $337.46 - $300 = $37.46

Step-by-step explanation:

The equation for interest rate compounded annually is what describes this investment, since: where A is the accrued value (total value of principal plus accumulated interest) in the account after the first year ($312), P the principal ($300 in our case), and r the interest rate in decimal form (0.04), and t is the time in years (one for the fist year). They perfectly satisfy the equation:

Then, we can apply this equation for years 2 and 3, just changing the value of t to 2 and 3, as shown below:

We can round the last value to two decimals (cents) obtaining: $337.46

The pure interest after the three years is therefore the total at that time minus the principal the account was started with ($300): $337.46 - $300 = $37.46

13.33%

say 50 oranges, then 100 apples

80 are red, 20 are yellow

total fruit = 150

20chances out of 150 for yellow

20/150 = 13.33%

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.