if a $1000 investment earns %20 interest compounded annually, then the investment will double in value in how many years?

Answers

Answer 1

Answer:

           In four years.

Step-by-step explanation:

End of first year:

1000 + 20%•1000 = 1000 + 200 = $1200

End of second year:

1200 + 20%•1200 = 1200 + 240 = $1440

End of third year:

1440 + 20%•1440 = 1440 + 288 = $1728

End of fourth year:

1728 + 20%•1728 = 1728 + 345.6 = $2073.6  >2•$1000

Answer 2
Well 100% is 20%x4 so four years So no matter what number it would be 4 years

Related Questions

Please help quickly! Thank you!

Answers

5 pounds- $17.50
1 pound- $17.50 divide by 5 pounds then multiple 1 pound=$3.50
10 pounds- $35
15 pounds- $52.50
20 pounds-$70
25 pounds- $87.50
30 pounds-$105
That’s correct, you should follow this persons advice

4/5 y = 8 , how do we solve pls help fast its urgent, I will mark u brainliest

Answers

Answer:

y = 10

Step-by-step explanation:

4/5 y = 8

4/5 y * 5/4 = 8 * 5/4           multiply by reciprocal

y = 10

Answer: y=10

Step-by-step explanation:

times each side by 5 so you're left with 4y=40

divide wach by 4 and then you got the answer

PLEASE ASAP Find the value of x

Answers

Answer:  this is in a fraction: X = 16/5, decimal form: x = 3.2, and in a mix number: x = 3 1/5

Step-by-step explanation:

Answer:

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.

Step-by-step explanation:

Alice earned $12 per hour. What equation shows the relationship between her weekly salary (w), hours per week (h), and rate per hour (r).

Answers

12h=w

because the 12 is the r and you multiply it by h to get w
R multiplied by h equals w because the amount of hours times the amount of money per hour would equal the total per week

Find the product 0 . 67 × 0 .3

Answers

0.067 =67/100
0.3 =3/10
0.67 * 0.3 = 67/100 *3/10
(67*3) / (100*10)
=201/1000
=0.201

Question 0.67 x 0.3
Answer = 0.201

Find the value of 3/4 of 2/5 of a century.

Answers

Answer:

a century = 100 years.

3/4 x 100 years = 75 years.

2/5 x 100 years = 40 years.

3/4 75 years 2/5 is 40 hope this helps

The length of a rectangle is 3ft more than twice the width, and the area of the rectangle is 54ft^2. Find the dimensions of the rectangle.

Answers

Answer: Let length = 2x + 3

Let width = x

Area = 54 ft2

length × width = Area

x(2x + 3) = 54

2x2 + 3x = 54

2x2 + 3x - 54 = 0

(2x - 9)(x + 6) = 0

x = 9/2 and x = -6

x = 4.5 and x = -6

We accept x = 4.5 because length cannot be a negative value. Substituting this value into the dimensions:

width = 4.5 ft

length = 2(4.5) + 3 = 9 + 3 = 12 ft

Step-by-step explanation:

Let wedth = x
Length = 2x+3
Area = 54
Area = l X b
54= (2x + 3) X x
54 = 2 x² + 3x
The equation will be:
2 x² + 3x - 54
2 x² + 12x -9x - 54
2x (x+6) -9(x + 6)
(2x-9) (x+6)
We will use (2x-9)
2x-9= 0
2x = 9
x = 9/2
x = 4.5

Width = 4.5
Length = (2x +3)
Length = (2X 4.5 + 3)
Length = 9.0 + 3 = 12

Right triangle XYZ, with vertex Y at (-3, 0), is rotated clockwise 180° about the origin. Which of the following rotations is equivalent to 180° clockwise rotation about the origin? clockwise 360° counterclockwise 180° counterclockwise 360° clockwise 270°

Answers

Answer:

the rule for rotation  180 degrees clockwise around the origin is:

(x,y) --------> (-x,-y)

(-3,0) --------> (-(-3),0)

(-3,0) --------> (3,0)

rotation counterclockwise 180 degrees is the same as rotation 180 degrees clock wise:

(x,y) -------->(-x,-y)

Answer:

the answer is counterclockwise 180

Step-by-step explanation:

Last month I had 8 guppies. This month I have 20 guppies. What is the percent of increase in guppies from last month to this month?

Answers

Answer: 150% increase

Step-by-step explanation:

percent of increase: new/old × 100%-100%

--------------

new/this month: 20 puppies

old/last month: 8 puppies

 new/old×100%-100%

=20/8×100%-100%

=2.5×100%-100%

=250% -100%

=150% increase

Hope this helps!! :)

Please let me know if you have any question

Which measurement represents the greatest length? 1 meter 27 inches 98 centimeters 6 feet?

Answers

Answer:

6 ft is the greatest length

Step-by-step explanation:

1 meter= 3.2 ft

1 meter= 100 centimeters

1 meter= 39.4 inches

6-3.2 = 2.8 which runs over

Hope this helps

Answer:

6 feet

Step-by-step explanation:

Pls help i need the answer asap

Answers

Answer:

1) An triangle

2)Area is the same

3) Length times width then times 1/2

4)To find the polygon's area using the circle's measurement you us pi times radius squared(to find the circles area which is the same as the polygon's area)

HOPE THIS HELPS :)

A recipe for making 3 dozen muffins requires 1 1/2 cups of flour. How many cups of flour are required to make 5 dozen of the same muffins? A) 2 cups B) 2 1/2 cups C) 3 cups D) 3 1/2 cups

Answers

The answer is B. 2 1/2

Find the value of x .

Answers

Answer:

x=32

Step-by-step explanation:

Add the 2 angles and subtract that by 180.

I would check my work just to make sure :)

94+44=138
180-138=42
x=42 degrees

jack bought 4 bagels for 3.00. how many bagels can he buy for 4.50?

Answers

Answer:

The answer is

6 bagels

Step-by-step explanation:

In order to solve this problem we use ratio and proportion

From the question

He used 3.00 to buy 4 bagels

Then 4.50 will be

[tex] \frac{4.5 \times 4}{3} \\ = \frac{18}{3} [/tex]

We have the final answer as

6 bagels

Hope this helps you

He can buy six




Explanation :

Find the unit price of one bagel which is
3.00 divided by 4 and you get 0.75
4.50 divided by 0.75 is 6

i need step by step explanation for thisss >33

Answers

Answer:

Step-by-step explanation:

The question says find the number eight times of a certain two digit number exceeding the number 19.The tens digit than the units digit . So,you have to multiply eight to a two digit number exceeding 19 so you find a number exceeding 19 which would have to be able to to multiply by eight to exceed the number 19

find the number eight times of a two digit number higher than the number nineteen. The tens digit than the units digit .you have to multiply 8 to a 2 digit number exceeding nineteen so you find a number exceeding ninteen which would have to be able to to times by 8 to go higher than the number nineteen

1.5d + 8.25 = 3 + 2.25d

pls help meee

Answers

Answer:

d=7

Step-by-step explanation:

1.5d-2.25d = 3-8.25

-0.75d= -8.25

d=7

Answer:

is it 11.25?

Step-by-step explanation:

The surface area of a cube is 600 cubic centimeters. What is the volume? Answer Choices are on the Image.

Answers

Answer:

D. 1,000 cm^3

Step-by-step explanation:

Surface area of a cube is calculated by multiplying the square value of the edge by 6 which is shown as 6 × a^2

6 × a^2 = 600

a^2 = 100

a = 10

The volume of a cube is calculated by multiplying edge with itself three times which is shown as a^3

10^3 = 1000

Answer:

D

Step-by-step explanation:

10×10 on each side of the cube= 100. 6 sides = 600.

10×10×10= 1000

Plz fill the blanks in. 2 thousandths+ 9 ones 5 thousandths=_____thousandths=_______

Answers

Answer:

the thousandths equils 2

Step-by-step explanation:

yuh

Answer:

  9007 thousandths = 9.007

Step-by-step explanation:

A unit is 1000 thousandths, so 9 ones is 9000 thousandths.

You have ...

  0.002 + 9.005 = 9.007

  2 thousandths + 9 ones 5 thousandths = 9007 thousandths = 9.007

Larry is building a frame around a rectangular picture. He will need 40 inches of wood to do the entire frame. If the frame is 12 inches long, how wide is the frame?

Answers

Answer:

8

Step-by-step:

12+12=24

40-24= 16

there is 16 inches of wood left

16/2=8

8 inches of wood for each side of width.

Find an equation in standard form for a parabolic function that goes through the points (1,-12) (3,16) and has a stretch factor of 2

Answers

Answer:

Vertex form of a quadratic equation is y=a(x-h)2+k, where (h,k) is the vertex of the parabola.

The vertex of a parabola is the point at the top or bottom of the parabola.

'h' is -6, the first coordinate in the vertex.

'k' is -4, the second coordinate in the vertex.

'x' is -2, the first coordinate in the other point.

Step-by-step explanation:

What is the rate of change of the function represented by the table?
A. –2.5
B .–1
C. 1
D. 2.5

NEEED HEEELP!!! WILL GIVE BRAINLIEST

Answers

Answer:

-2.5

Step-by-step explanation:

Subtract -8.5 from -6, and continue down the column.

-2.5 would be ur answer here

The Bradenton Post polled 1,356 adults in the city to determine whether they wet their toothbrush before they put toothpaste on it. Of the respondents, 54% said they wet it first. Suppose 68% of all adults actually wet their toothbrush first. What are the mean and standard deviation of the sampling distribution?

Answers

Answer:

deviation = -95.50147493     mean = 61

Step-by-step explanation:

54% wet there brushes first

suppose 68% wet there brushes what is the mean

mean: a mean is where you add both numbers together to get a total then divide by how many numbers you added for now we wont need the amount of people we just need the percentages for this

54 + 68 = 122

we added to numbers so well divide by 2

122 divided by 2 or 122/2 is equal to 61

61 is our mean

standard deviation : this is were you take the known average 1356 adults and subtract the mean

1356- 61 = 1295 then divide by 1356 and times by 100

if the number is positive then the mean is higher than expected but luckily its a negative so its -95.50147493

The equations of three lines are given below. Line 1: 6x-4y=6 Line 2: -2y=3x+5 Line 3: y=-2/3x+7 For each pair of lines, determine whether they are parallel, perpendicular, or neither.

Answers

Answer:

Line 1 and Line 2: Neither -- slopes are not same (one is negative one is positive)

Line 1 and Line 3: Perpendicular -- Line 3's slope is the negative reciprocal of Line 1's

Line 2 and Line 3: Neither -- different slopes

Step-by-step explanation:

Lines are parallel if they have the same slope but different y-intercept.

Lines are perpendicular if the slopes are negative reciprocals.

lines are parallel !!

PLEASE HELP!! PLEASE STEP BY STEP!

Answers

Answer:

answer is c

Step-by-step explanation:

the answer i got is c

Two third of a number is greater than one third of the number by 5. The number is ________

Answers

Let's assume the number as x

rd of x =( )x

Now ⅔ of x is greater than ⅓ of 5 .

[tex] \sf{ \implies \: \dfrac{1}{3} \times 5 = \dfrac{5}{3} } [/tex]

[tex]\sf{ \implies \: \dfrac{2}{3} \times x > \dfrac{5}{3} } [/tex]

[tex]\sf{ \implies \: x > \dfrac{5}{3} \times \dfrac{3}{2} }[/tex]

[tex]\sf{ \implies \: x > \dfrac{5}{2} }[/tex]

So number will be greater than 5/2 .

Answer:

the answer is 10

plsss mark me brainliest

i need more brainlees

plsss help me

Step-by-step explanation:

Solve: (-4) - 16 ÷ (-4) × 10 + 20

Answers

Answer: 1

Explanation:

(-4 - 16)/(-4) x 10 + 20
= -20/(-40 + 20)
= -20/-20
= 1
The right answer is 1

Estimate: 4.1 * 7.8 *2.3

Answers

Answer:

yea yeah

Step-by-step explanation:

singing challenge

HELLLLPPPP I WILL MARK BRAINLESTTTT

Answers

1. 0.25. This is because if you have -18.75 and then you add 20 to it you would be left with 0.25.
2. -1.25. This is because if you add AM and Noon together you would get that answer.
3. 14.1. If you do 1.43 + 12.67 then you would get that answer.
1. -18.75+19.00=0.25
2. -16.5+15.25=-0.8
3. 1.43+12.67=14.1

Simplify 6(x + 4) 10x 6x + 4 6x + 24

Answers

Answer:

=360x4+1440x3+24x+24

Step-by-step explanation:

6(x+4)(10)xx(6)x+(4)(6)x+24

=360x4+1440x3+(4)(6)x+24

=360x4+1440x3+24x+24

Hope it helps!!

Molten lava 50-feet thick cools at a rate of about 20 degrees Fahrenheit per month. What is the overall change in temperature of molten lava that is 50-feet think after four months?

Answers

80 degrees over the course of four months
80 degrees in a total of 4 months
Other Questions
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