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Olegator [25]
3 years ago
8

Jeff invests an amount at 4% interest compounded annually. After 3 year he has 1687.30, What was the original amount jeff invest

ed?
Mathematics
1 answer:
Firlakuza [10]3 years ago
7 0
A = P(1+r/n)^<span>(nt)
1,687.30 = P (1+ 0.04/1)^3
1,687.30 = P (1.124864)
P = 1687.30 / </span>1.124864
P = 1500
answer: $1500 <span>was the original amount jeff invested</span>
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Marina CMI [18]

Answer:

$1323.00

Step-by-step explanation:

A simple equation that can be used to figure this out is:

p*1.5*o=t

The variables mean:

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o- hours worked overtime

t- total amount of money earned.

(Also, the 1.5 is always used to calculate overtime, no matter what job, unless otherwise specified, and as referred in the problem as "time and a half").

So, to finally work out this problem:

($14*1.5)*63=?

first, (14*1.5)= $21

($21*63)= $1323.

4 0
3 years ago
Which expression is equivalent to (x^2 -8) - (-2x^2+4)?​
Phoenix [80]

Answer:

D) 3x^2 - 12

Step-by-step explanation:

Using PEMDAS;

There is no need to evaluate the part of the equation (x^2 - 8) because is no need to, as it is already in its simplest form.

We must evaluate the part of the equation continuing with, "- (-2x^2+4)," as it is not in its simplest form.

Evaluating "- (-2x^2+4)":

Step 1: Distributing the negative

Once distributing the negative symbol amongst the values within the parenthesis according to PEMDAS, we get "2x^2 - 4" as the product.

Step 2: Consider the rest of the equation to evaluate

Since the part of the equation is still in play here as it is a part of the original equation to be solved, we must evaluate it as a whole to get the final answer.

Thus,

x^2 -8 + 2x^2 - 4 = ___

*we can remove the parenthesis as it has no purpose, since it makes no difference.

Evaluating for the answer, we get,

x^2+2x^2 + (-8 - 4) = 3x^2 - 12

Hence, the answer is D) 3x^2 - 12.

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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So its radius is 7 ft.

The total area of the blue shape

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= 1413.86 ft^2.

7 0
2 years ago
This figure is made up of two rectangular prisms.
Ber [7]

Answer:

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