David and Michael each put the same amount of money in a new bank account. David's account and 4.25% simple interest and he earned $2.40 in interest after one year Michael's account and 6% simple interest how much interest is in her account after one year? round to the nearest dollar or whole number​

$3.00 ($3.39)

Step-by-step explanation:

First, you need to find out how much David and Micheal put in their accounts at first. You know that David accumulated $2.40 at 4.25% interest rate, you can find what 1% of what his original deposit was by dividing $2.40 by 4.25% then multiplying that 1% by 100 to get the original deposit.

(2.40/4.25)100=56.470588235294

$56.47 is how much both David and Micheal deposited originally.

Micheal's account is on a 6% interest rate so you know her earnings should be slightly higher than David's $2.40, near $3.50.

To find the exact earnings you need to find what 6% of $56.47 is,

(56.47/100)6=3.39

So Micheals earned exactly $3.39 but you need to round your answer to the nearest whole number (or dollar) and that would be $3.00      

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

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