Mathematics Middle School

Suppose an investment of $500 doubles in value every 15 years. How much is the investment worth after 30 years? After 45 years?Write an equation and solve

Answers

Answer 1

Answer:

Step-by-step explanation:

well all you have to do is 500 dollars times two, because it times each 15 years right and 30/15=2. So you do $500*2 which is $1000. And you get $1500 in 45 yrs.

So the equations are for each 15 yrs you add 500 dollars to the amount.

Related Questions

what is the answer i need answers now like right now I will mar you brainliest

what is the answer i need answers now like right now I will mar you brainliest

Answers

The answer is C. 4(8b -5).
The answer is C!!!!!!!

Which figure is a trapezoid?

A 4-sided shape with 2 parallel sides.
A 4-sided shape with 4 parallel sides.
A 4-sided shape with 4 parallel sides.
A 5-sided shape with 2 parallel sides.

Answers

Answer:

none of those

Step-by-step explanation:

A trapezoid is a 4-sided shape with 1 parallel side

Could you pls choose this as brainliest???!!!

The answer would be a four sided shape with one set of parallel sides. Parallel sides are two sides that will never touch or intersect. To further explain, if we take the left and right sides of the trapezoids and extend them, they will eventually intersect meaning that they aren’t parallel. This will go for and trapezoid, no matter the side lengths. However, if we take the top and bottom sides of a trapezoid and extend them left and right, we will find that they will never intersect which is how we know that a trapezoid only has one pair of parallel sides.

Two data sets and their mean absolute deviations are shown.

Study the plots of each data set, and then use the drop-down menus to answer the questions below.

Two data sets and their mean absolute deviations are shown.Study the plots of each data set, and then

Answers

Answer:

Step-by-step explanation:

Use internet to read a graph

Which algebraic expression represents the phrase Six more than the product of 4 and the number of c cups?
A. (6 + 4)c
B. 6 + 4c
C. 4 + 6c
D. 6 × 4 × c

Answers

the answer is B
the number 4 and letter c get multiplied together because of the use of the word product. that leave the 6 to be added to that

6 + 4c algebraic expression represents the phrase Six more than the product of 4 and the number of c cups.

What is Expression?

An expression is combination of variables, numbers and operators.

We need to find the algebraic expression represents the phrase Six more than the product of 4 and the number of c cups

The phrase Six more than the product of 4 and the number of c cups" can be translated into an algebraic expression as

6 + 4c

more than in the sentence is addition and product is nothing but multiplication.

Therefore, 6 + 4c algebraic expression represents the phrase Six more than the product of 4 and the number of c cups.

To learn more on Expressions click:

https://brainly.com/question/14083225

#SPJ2

what property is 11+(11-4)x-16=0

Answers

Answer:

Associative Property

Step-by-step explanation:

Which expression is correctly written in scientific notation?

A. 398 x 10^1 B. 39.8 x 10^2

C. 3.98 x 10^4 D. .398 x 10^3


Need answer ASAP

Answers

Answer:

C. 3.98 x 10^4

Step-by-step explanation:

We are only allowed one non zero digit before the decimal

A. 398 x 10^1   3 non zero digits

B. 39.8 x 10^2   2 non zero digits

C. 3.98 x 10^4 1 non zero digit

D. .398 x 10^3  0 non zero digits

Answer is C :3.98x10^4

GIVING BRAINLIEST FOR CORRECT ANSWER!!
Solve this.

GIVING BRAINLIEST FOR CORRECT ANSWER!!Solve this.

Answers

Answer:

11/14

Step-by-step explanation:

Take 14 as the common denominator.

=> 2/7 + 7/14

=> 4/14 + 7/14

=> 11/14

BRAINLIEST.

U SAID SO.

Answer:

11/14

Step-by-step explanation:

first you have to turn 2/7 in a denominator of 14. you have to multiply both numerator and denominator by 2 so then you have 4/7+7/14  

4+7 = 11

the denominator stays the same (14)

you now have 11/14

A coach calculated the mean and the mode of the number of points scored by 6 players.
• mean: 7 points
mode: 8 points
How many points did player 5 score?

A coach calculated the mean and the mode of the number of points scored by 6 players. mean: 7 pointsmode:

Answers

5 points
Because 8+8+8+6+7+5=42
Then divide that by 6 to get the mean - so 42/6=7 so that’s the correct mean
5 points

Explanation:
Mean = average
Equation: total points scored/total players
Mean=7+8+6+8+?+8/6

The mean is given: 7

So plug it in:
7=(7+8+6+8+?+8)/6

Factor to solve:

Add all the numbers together to leave just the missing number (?)
7=(37+?)/6

To get rid of the 6 multiply it over to the other side
6x7=37+?
42=37+?

Now subtract the 37 to the other side to find the missing number (?)
42-37=?
5=?

Now let’s check:
7+8+6+8+(5)+8=42
Add:
42
Now divide by 6
42/6=
7
Is 7 the mean they gave us? Yup!
So player 5 scored 5 points

Which expressions are equivalent to the model?



Select all that apply.

2y+(3+4x)

2y(3+4x)

6xy+3

2y+7x

6y+8xy

Which expressions are equivalent to the model?Select all that apply.2y+(3+4x)2y(3+4x)6xy+32y+7x6y+8xy

Answers

The correct answer is 2y(3+4x)
the correct answer is 2y(3+4x) and 6y + 8xy
you can distribute the 2y to both of the values inside the parentheses in order to simplify

PLease solve it as fast has you can

PLease solve it as fast has you can

Answers

Answer:

\(f^{-1}\left(f(576)\right)=\boxed{576}\)

\(f^{-1}(-7)+f(-7)=\boxed{13}\)

Step-by-step explanation:

The inverse of an invertible function with the domain of all real numbers is obtained by reflecting the original function across the line y = x, which swaps the input and output values of the function. Therefore, (x, y) → (y, x).

Given table:

\(\begin{array}{lrrrrrr}\vphantom{\dfrac12}x&-7&11&-13&6&5&-9\\\cline{1-7}\vphantom{\dfrac12}f(x)&7&12&8&-7&13&5\end{array}\)

Inverse function:

\(\begin{array}{lrrrrrr}\vphantom{\dfrac12}x&7&12&8&-7&13&5\\\cline{1-7}\vphantom{\dfrac12}f^{-1}(x)&-7&11&-13&6&5&-9\end{array}\)

If we have a function f(x), the inverse function is denoted as f⁻¹(x), and it has the property that f⁻¹(f(x)) = x for all valid inputs x in the domain of f(x).

Therefore:

\(\large\boxed{f^{-1}\left(f(576)\right)=576}\)

The value of f(-7) is the value of f(x) when x = -7. Therefore, reading from the original table, f(-7) = 7.

The value of f⁻¹(-7) is the value of f⁻¹(x) when x = -7. Therefore, reading from the inverse function table, f⁻¹(-7) = 6.

Therefore:

\(\large\boxed{\begin{aligned}f^{-1}(-7)+f(-7)&=6+7\\&=13\end{aligned}}\)

The first time you have a problem is if you’re going through something and you’re trying something new you need a break and then you’re not doing anything to it so I think you’re going through a really hard situation right and then you’re just going to have a bad day so you don’t get it

Brainliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Brainliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

I got 1.2 I found this because the smaller model is 60% the size of the larger model same with the side NJ
I’m pretty sure it is 5.4

I will give brainliest + 50pts
Write a function h to model the vertical motion for the situation. Find the maximum height.

Initial velocity= 200ft
Initial hight= 5ft

Answers

Answer:

During halftime of a basketball ​game, a sling shot launches​ T-shirts at the crowd. A​ T-shirt is launched with an initial upward velocity of 78 feet per second. The hight of the t-shirt (h) in feet after t seconds is given by the function h=-16t^2+78t+5. How long will it take the​ T-shirt to reach its maximum​ height? What is the maximum​ height? What is its maximum height?

Step-by-step explanation:

cool

A cylindrical container has a height
of 14 inches and radius of 3.2 inches.
It is filled with pasta, but there is
1.5 inches of space left at the top.
How many cubic inches of pasta are
in the container?

Answers

Answer:

80 cubic inches

Step-by-step explanation:

Please look at the picture below also as you read the answer!

1.

To find the cubic inches of pasta, first, let's find the diameter.

If the radius (always half of the diameter) is 3.2, then what's the diameter?

3.2+3.2=6.4

So, the diameter is 6.4 inches

2.

Find how much height is the pasta at

The container is 14 inches high, but the past is only filled till the top leaving 1.5 inches of space, what can we do to find out how much height is the pasta filled till?

14-1.5=12.5

So, the height till what the pasta is filled till is 12.5

3.

The formula for finding this...

V=BxH

V=Volume

B=Base

H=Height

4.

Applying the formula

BxH=?

Base = 6.4 inches

Height = 12.5 inches

6.4x12.5=?

64x125=8000

           =80.00

(after removing 2 zeros in the back, because the original number was having decimal)

So, hence, the volume of our awesome cylinder of pasta is 80 Cubic Inches!

The pasta in the container is 80 Cubic Inches in volume.

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Mathematics

Thank You!

Answered by: ms115

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A cylindrical container has a heightof 14 inches and radius of 3.2 inches.It is filled with pasta, but

Pauly is marking up the price of an old telescope to sell. He paid $45.00 for it originally and wants to mark it up by 10%.

What is the amount of markup for the telescope?

A. $450.00

B. $45.00

C. $4.50

D. $.45

Activity 2 of 2
Pauly is marking up the price of an old telescope to sell. He paid $45.00 for it originally and wants to mark it up by 10%.

How much will Pauly sell the telescope for after the markup? Enter you answer in the text box rounded to the nearest cent.

Help Please : 3

Answers

Answer:

C. $4.50

Step-by-step explanation:

Cost

$45

Markup

10%

Profit

$4.50

hope this helped.

the answer for first activity is C. $4.50

What number completes the equation shown?
7 × 1.25
?
Enter your answer in the box.

What number completes the equation shown?7 1.25?Enter your answer in the box.

Answers

Answer:

8.75

Step-by-step explanation:

Triangle JKL was dilated with the origin as the center of dilation to create triangle J'K'L'. The triangle was dilated using a scale factor of 1/2. The coordinates of the vertices of triangle JKL are given. You can use the scale factor to find the coordinates of the dilated image. Enter the coordinates of the vertices of triangle J'K'L' below.
(Decimal values may be used.)

Triangle JKL was dilated with the origin as the center of dilation to create triangle J'K'L'. The triangle

Answers

Answer:

J' (-2, 2.5), K' (1, 2.5) L' (1, -2.75)

Step-by-step explanation:

With a scale factor of 1/2=.5 you can simply multiply all coordinates by .5 (or divide by 2)

J (-4,5) x 1/2= (-2, 2.5)

K (2,5) x . 5 = (1, 2.5)

L (2, -5.5) /2= (1, 2.75)

NEED HELP REALLY FAST!!!!!!!!!

NEED HELP REALLY FAST!!!!!!!!!

Answers

I think the answer would be 8 :) hope this helps !
the answer is 10, hopefully this helps:)

please help ill give brainliest

please help ill give brainliest

Answers

Answer:

I think the equation is 2x22+77

Step-by-step explanation:

i think it’s 77=22•2x

i need help with this question please help me

i need help with this question please help me

Answers

Answer:

The answer is D.

Step-by-step explanation:

y = mx + b

C = 5/9 (F - 32)

C = 5/9F - 5/9 (32)

Option (D) is correct.

Write a story about temperatures that this expression could represent:

27 + (-11)

Answers

Answer:

at noon the temperature was 27 degrees. At night, the sun went down and the temperature decreased by 11 degrees.

Answer:

Step-by-step explanation:

There are 27 cows and at night a wolf eats 11 or kill 11 there will be 16 left because 27-11= 16 The answer is 16

HELP PLEASE I WILL GIVE YOU BRAINLIEST

HELP PLEASE I WILL GIVE YOU BRAINLIEST

Answers

The answer is 600 because of the miles

Which expression will result in a solution that is "undefined"?

A. (-5) + 5/5
B. 12/0
C. 0/56
D. -7(0)

Answers

Answer:

that would be d. -7 (0)

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The calculator says so.

Also because 0 / 56 is 0.

-7 * 0 is 0. -5 + 1 = -4. So its probably B

please help meeeeeee

please help meeeeeee

Answers

Answer:

it's the bottom left one

Step-by-step explanation:

Im just a kid, don't ask

So -1/4x+1/2 x would be 1/4 x because -0.25+0.5=0.25

translating 2/3 into 4/6, so we do 4/6-2/6 which would be 1/2.

:) Im an idiot lol

Answer: bottom right

Solution:

First solve like-terms:
-1/4x + 1/2x
Find the lowest common denominator which is 4. Multiply 1/2 by 2/2 to get 2/4 so that your denominators (number on the bottom of the fraction) have the same number.

Now add:
-1/4x + 2/4x which is equal to 2/4x - 1/4x
Since the numbers have the same denominator, subtract the numerators.

-1/4x + 2/4x= 1/4x

Now move on to the other terms:
2/3 - 1/6
Find lowest common denominator which is 6.
Multiply 2/3 by 2/2 to get a denominator of 6.
Once they have the same denominator, you can subtract.

4/6 - 1/6 = 3/6

3/6 = 1/2

3/6 reduces to 1/2; these are equivalent fractions.

Lastly, combine the two terms:
1/2 + 1/4x

a aquarium requires 2 chaperon for every 15 students

Answers

Answer:

Hope this helps!

Step-by-step explanation:

This is a table:

2-15

4-30

6-60

8-120

10-240

Image below.
Explain

Image below.Explain

Answers

Answer:

No, It is not true

Step-by-step explanation:

First of all, we should have a number in the tenths place, and we don't.

Also, in the hundredths place, we should have 9, not 4.

And finally, the answers should be 0.195, not 0.042.

Answer:

This is False

You want to add it up as if there wasnt any decimal  than you want to put the decimals back 3 spots

0.025 + 0.17= 0.195

how many triangles can be constructed with the side lengths of 5 inches, 8 inches, and 20 inches

Answers

Answer:

No triangles

Step-by-step explanation:

The Triangle Inequality Theorem, states that the sum of the lengths of any two sides of a triangle is greater than the length of the third side

5+8 > 20 <-- is not true.

The answer is that no triangles can be made

English is the predominant language spoken in Chile. Question 1 options: True False

whoever answers first gets the crown

Answers

Answer: The answer is false!

Step-by-step explanation: You may think its true but NO, its not true!

Answer: false

Step-by-step explanation:

the correct answer is a dialect of spanish, chilean spanish.

Simplify (14.1×10^5)-(2.9×10^5). Write your answer in scientific notation. What is the answer in need it before tomorrow

Answers

Answer:

hey! i just put that in my calculator and got 1.12^6, hopefully that is correct and if you need help understanding how i got there just ask!! hope this helps have a great day!!

Step-by-step explanation:

1.12^6 I think I put that in right just look at the persons work above me 3

PLEASE ASAP HURRY!!!

PLEASE ASAP HURRY!!!

Answers

Answer:

Strawberry= 3
Watermelon=3
Coconut=9
Orange=5

Step-by-step explanation:

Quite easy, you can use substitution

First look at the simplest row that can be solved by itself

row 2:

2strawberries +4 = 10

2 strawberries= 6

1 strawberry = 3

Row 3: Strawberry(3)+ orange=8

1 orange= 5

Rpw 4: 14= 1coconut +orange(5)

1 coconut= 9

Row 1: Coconut(9)+ watermelon+ coconut(9)= 21

2 coconut(18)= 21

1 watermelon = 3



Strawberry=3

Watermelon=3

Coconut=9

Orange=5

Simplify the expression -12 + 2(3x + 5) + 4x

Answers

-2+10x ( you can use Socratic )
1) distribute the parentheses: 2(3x+5)
-12+6x+10+4x
2) then collect like terms: -12+10 and 6x+4x
and u should get: -2+10x
hope this helps!!
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