Mathematics: The combined yearly interest for x dollars invested at 12% and 45,000−x dollars invested at 8% is

The combined yearly interest for x dollars invested

Ответ:

kruegeremma22

11.03.2022

Mathematics

3600+0.04x

Step-by-step explanation:

We are asked to find the combined yearly interest for both amounts.

The interest for x dollars invested at 12% would be 12% of x.

$12\%\text{ of }x=\frac{12}{100}x=0.12x$

The interest for 45,000-x dollars at 8% would be 8% of .

$\frac{8}{100}(45,000-x)$

0.08(45,000-x)

3600-0.08x

Combined interest: 3600-0.08x+0.12x

3600+0.04x

Therefore, the combined tax would be 3600+0.04x .

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Ответ:

kaleighashtyn

25.11.2021

Mathematics

Hi there!

Let's solve this equation step by step!

First add 81 to both sides.

Divide both sides by 4.

Take the square root of both sides (and the negative root of 20 1 / 4)

Therefore the two solutions are
x = 4.5 and x = - 4.5
~ Hope this helps you!
Which of the following are solutions to the equation below? check all that apply. 4x2 - 81 = 0

Which of the following are solutions to the equation below? check all that apply. 4x2 - 81 = 0

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The combined yearly interest for x dollars invested at 12% and 45,000−x dollars invested at 8% is

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