I need help with these two problems... PLZ HELP ME!!!!!!!
1 answer:
You might be interested in
The answer is $1,059.34
Explanation:
The formula for compound interest is
I = P(1+
Where I = interest, P = principal (original deposit), r = interest rate, n = number of times compounded per year, and t = time, in years.
Using this formula, we can substitute the information from the question for the their corresponding variables.
Now, after filling in the information, your formula should look like this
I = 816(1+
*The reason that the rate is 0.029 instead of 2.9 is that 2.9 is a percent, and we need a decimal. To convert it, you just need to divide the percent by 100.
Now, all we need to do is solve the equation using order of operations (PEMDAS).
I will divide the 0.029 by 365 first.
I = 816(1+0.00008
**This is not the exact decimal. It would be too difficult to write entirely, but I will be using the true decimal in my calculations.
Next, we have to add 1 to the decimal.
I = 816(1.00008
Now, I will multiply 365 and 9 together.
I = 816(1.00008
Next, we must raise the number within the parenthesis to the power of 3285.
I = 816(1.3)
***Again, this is not the actual decimal. The real one will be used in the calculation, though, like before.
Finally, we have to multiply the decimal by the principal, 816.
I = $1,059.34
Explanation:
The formula for compound interest is
I = P(1+
Where I = interest, P = principal (original deposit), r = interest rate, n = number of times compounded per year, and t = time, in years.
Using this formula, we can substitute the information from the question for the their corresponding variables.
Now, after filling in the information, your formula should look like this
I = 816(1+
*The reason that the rate is 0.029 instead of 2.9 is that 2.9 is a percent, and we need a decimal. To convert it, you just need to divide the percent by 100.
Now, all we need to do is solve the equation using order of operations (PEMDAS).
I will divide the 0.029 by 365 first.
I = 816(1+0.00008
**This is not the exact decimal. It would be too difficult to write entirely, but I will be using the true decimal in my calculations.
Next, we have to add 1 to the decimal.
I = 816(1.00008
Now, I will multiply 365 and 9 together.
I = 816(1.00008
Next, we must raise the number within the parenthesis to the power of 3285.
I = 816(1.3)
***Again, this is not the actual decimal. The real one will be used in the calculation, though, like before.
Finally, we have to multiply the decimal by the principal, 816.
I = $1,059.34
Answer:
832 square feet of paint is needed to covet pool walls
Step-by-step explanation:
<u><em>The correct question is</em></u>
A swimming pool is 40 ft long 12 ft <em><u>wide</u></em> and 8 feet deep how many square feet of paint is needed to cover the walls of the pool?
To find out the area of the walls, multiply the perimeter of the base by the deep of the walls
so
we have
substitute
therefore
832 square feet of paint is needed to covet pool walls