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SCORPION-xisa [38]
3 years ago
5

A person invested 3,900 in an account growing at a rate allowing the money to double every 7 years. How much money would be in t

he account after 18 years to the nearest dollar
Mathematics
1 answer:
alina1380 [7]3 years ago
8 0

Answer:

23182 or 23181.5109105

Step-by-step explanation:

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I need to do all of them.
OLEGan [10]

uh, solve for x? Its simple, but first, since it is a prep for a test, you should study how to solve for x, which is easy. So To solve for x, bring the variable to one side, and bring all the remaining values to the other side by applying arithmetic operations on both sides of the equation. Simplify the values to find the result.

Let’s start with a simple equation as, x + 2 = 7

How do you get x by itself?

Subtract 2 from both sides

⇒ x + 2 - 2 = 7 - 2

⇒ x = 5

Now, check the answer, x = 5 by substituting it back into the equation. We get 5 + 2= 7.

L.H.S = R.H.S

And then for a triangle:

Solve for x" the unknown side or angle in atriangle we can use properties of triangle or thePythagorean theorem.

Let us understand solve for x in a triangle with the help of an example.

△ ABC is right-angled at B with two of its legs measuring 7 units and 24 units. Find the hypotenuse x.

then in △ABC by using the Pythagorean theorem,

we get AC2 = AB2 + BC2

⇒ x2 = 72 + 242

⇒ x2 = 49 + 576

⇒ x2 = 625

⇒ x = √625

⇒ x = 25 units

get it? Good

5 0
2 years ago
The area of a lawn is 500 square feet the length is 5 feet longer then the width what are the length and width of the lawn
Alona [7]

Step-by-step explanation:

area is base x height so 5 x 100 because as I said area is base x height.

5 0
3 years ago
Read 2 more answers
The cereal box is a rectangular prism find the surface of the box when the hight is 30cm width is 5cm length is 20cm
AfilCa [17]

Answer:1700

Step-by-step explanation:

3 0
3 years ago
Monica has 5 red cubes, 6 blue cubes, and 4 green cubes in a bag. She randomly chooses 9 cubes and gets 3 of each color.
aleksandrvk [35]
Red blue green so 3
7 0
2 years ago
-2 (3 + 5y -10) = 34
IrinaK [193]
-2 (3+5y-10) = 34
Step 1) -6-10y+20=34
Step 2) -10y+20=40
Step 3) -10y=20
Step 4) y = -2
Answer is -2
7 0
3 years ago
Read 2 more answers
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