Robin saves $500 at a yearly simple interest rate of 4%. What is the total amount of
money she has after 20 years?

Answers

Answer 1

Answer:

$900

Step-by-step explanation:

The formula for simple interest is I = PRT where I is the interest earned, P is the principal/amount deposited or borrowed, R = rate as a decimal, and T = time in years

I = PRT

I = (500)(0.04)(20)

I = 400

Add the interest to the principal, and she will have $900 in 20 years.

Please let me know if you have questions about this.


Related Questions

Which expression is equivalent to 3m-1+m ?

Answers

Answer:

The answer is 4m-1

Step-by-step explanation:

Answer:

2 + m -1 + m

Step-by-step explanation:

During the lunar cycle, the Moon always appears: A. to wax, but not wane. B. to wane, but not wax. C. to wax, then wane. D. to wane while waxing. Please help!

Answers

Answer:

C.to wax then wane

Step-by-step explanation:

Waxing is "Maxing," or growing with light until a full moon is reached. Waning is the opposite, or decreasing after a full moon, and is always illuminated on the left. Then, there is a waxing or waning Gibbous moon, which means more than half of the moon is illuminated.

Charlie Co. owes $800,000 to Tilly, Inc. from whom Charlie buys its inventory. Which account would Charlie use to report the amount owed?

Answers

Answer:

I would use chase bank, checking account. they have really good over draft protection.

Need help ASAP!!!
Solve for the missing angle.

Answers

Answer:

D 56

Step-by-step explanation:

cos x = 5/9

x = 56°

have a great day

find the area of this trapezoid. Include the correct unit in your answer.
I need help understanding this and how to do it :)​

Answers

Answer:

[tex] \displaystyle A _{ \text{trapezoid}} = 70 {m}^{2} [/tex]

Step-by-step explanation:

we are given a trapezoid

we want to figure out the area

remember that,

[tex] \displaystyle A _{ \text{trapezoid}} = \frac{a + b}{2} h[/tex]

where a and b represent the parallel lines and h represents the height

we get from the pic that a and b are 5 and 15 respectively and h is 7

so substitute:

[tex] \displaystyle A _{ \text{trapezoid}} = \frac{5 + 15}{2} \times 7[/tex]

simplify addition:

[tex] \displaystyle A _{ \text{trapezoid}} = \frac{20}{2} \times 7[/tex]

simplify division:

[tex] \displaystyle A _{ \text{trapezoid}} = 10\times 7[/tex]

simplify multiplication:

[tex] \displaystyle A _{ \text{trapezoid}} = 70[/tex]

since we multiply two same units we of course have to use square unit

hence,

[tex] \displaystyle A _{ \text{trapezoid}} = 70 {m}^{2} [/tex]

If x and y vary inversely and x = 8 when y = 23, what is y when x = 4?​

Answers

11.5 because all you do is divide the numbers by 2

Answer:

11.5

Step-by-step explanation:

x=8 & y=23

then

x=4 is half so you divide by 2

so half of 23 would be 11.5. If you are rounding then it would be 12

An ice cream shop has a sign in the shape of an ice cream cone. The sign is made using a semicircle and a triangle, as modeled below.

Which is the best estimate of the area of the sign in square inches?

Answers

Answer: 50in²

Step-by-step explanation:

The area of the ice cream cone will be equal to 50.13 square inches.

What is an area?

The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the semicircle in a two-dimensional plane is called the area of the semicircle.

The space occupied by the triangle in a two-dimensional plane is called the area of the triangle.

Given that the diameter of the semicircle is 6 inches and the height of the triangle is 12 inches.

The area of the cone will be calculated as,

A = Area of semicircle + Area of triangle

A = (1/2)πr² + (1/2) x B x H

A = (1/2) π (3)² + (1/2) x 12 x 6

A = 14.137 + 36

A = 50.13 square inch

Therefore, the area of the ice cream cone will be equal to 50.13 square inches.

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I need help with this by Wednesday Please Help!!!!!

Answers

Answer:

Step-by-step explanation:

To complete the given table we will substitute the output value to calculate the input value.

Given function is,

y = 2x + 4

For output value, y = 18

18 = 2x + 4

2x = 18 - 4

x = 7

For output value, y = 22

22 = 2x + 4

2x = 22 - 4

x = 9

For output value, y = 34

34 = 2x + 4

2x = 34 - 4

2x = 30

x = 15

Therefore, table will be,

       Input (x)                 y = 2x + 4                output

          7                                                              18

          9                                                             22

         15                                                             34

An agricultural researcher wishes to see if a kelp extract prevents frost damage on tomato plants. two similar small plots are going to be planted with the same variety of tomato. plants in both plots are treated identically, expect the plants on plot 1 are going to be sprayed weekly with a kelp extract while the the plants in a plot 2 are not. let p1 and p2 be the actual proportion of all tomatoes of this variety that would experience crop damage under the kelp and no kelp treatments, respectively, when grown under conditions similar to those in the experiment. which of the following results would indicate that a difference exists between the two treatments?
(a) the 95% confidence interval for p1-p2 is (-0.279, -0.035).
(b) the 95% confidence interval for p1-p2 is (-0.279, 0.035)
(c) the 95% confidence interval for p1-p2 is (0.0279, 0.350)
(d) all of the above
(e) only (a) and (c)

Answers

Answer:

(E). only (a) and (c)

Step-by-step explanation:

H0 : p1 - p2 = 0

H1 : p1 - p2 ≠ 0

To indicate that difference exists between the two treatments, then we must reject the null and confidence interval must show that the difference between the two treatment is significant.

In other to use confidence interval to test for significance ; Intervals which do not contain 0 implies that difference exists and hence, the difference is significant.

The interval Given by : (-0.279, -0.035) is significant as the interval does not contain 0.

The interval Given by : (0.279, 0.035) is significant as the interval does not contain 0.

The interval Given by : (-0.279, 0.035) is not significant as the interval contains 0.

Can you figure it out
plssssssssssssss​

Answers

The answer is 10 hope this helps

Find the difference or type
"impossible"
[3 –8] - [4 -5 -6]

Answers

Answer:

2

Step-by-step explanation:

(3-8)-(4-5-6)

(-5)-(-7)

-5+7

2

Using subtraction, the solution of the given equation is 2.

What is subtraction?

Subtraction is the process of taking away a number from another. It is a primary arithmetic operation that is denoted by a subtraction symbol (-) and is the method of calculating the difference between two numbers.

= [3 - 8] - [4 - 5 - 6]

= [-5] - [4 - 11]

= -5 - [-7]

= -5 + 7

= 2

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A random sample of failure time of 49 kidney transplants (in months) is given: 5.27 43.72 3.96 20.34 44.06 31.18 21.98 34.99 39.36 3.39 23.42 43.41 34.35 46.71 64.87 4.53 7.02 40.50 7.38 37.74 13.49 68.48 48.74 12.85 24.15 27.33 4.82 20.00 55.28 20.83 24.13 11.80 13.82 31.55 36.69 52.57 12.45 40.07 16.86 15.54 15.54 3.85 4.08 5.62 17.44 3.38 41.61 29.52 21.61 If we assume failure time has a Gamma distribution answer the following questions (with 2 decimal points). . Find the critical value for the test (for significance level of 0.1).

Answers

Answer:

Critical value ≈ 1.299

Step-by-step explanation:

number of Kidney transplant ( n )  = 49

Determine the critical value for the test

the sample mean = ∑ failure time / n  = 1252.28 / 49 = 25.56

next we determine the standard deviation of the sample

s = [tex]\sqrt{1/(n-1)(xi -X ) ^2}[/tex] = 17.3126

standard error = s / √n  = 17.3126 / 7 = 2.4732

Given  a significance level of 0.1

df (degree of freedom ) = n -1 = 49 - 1 = 48

∝ = 0.1

critical value = 1.299 ( using excel function ; =T.INV(0.90,48) )

I ASK SO MUCH OF YOUR HELP, PLEASE. Let x + y = 11 and x^2 + y^2 = 325. What is the value of x^3 + y^3? PLEASE EXPLAIN, TOO .

Answers

Answer: 4697

Step-by-step explanation:

x + y = 11 ......... i

x² + y² = 325 ........ ii

From equation i

x + y = 11

Therefore, x = 11 - y....... iii

Put equation iii into equation ii

x² + y² = 325

(11 - y)² + y² = 325

(11 - y)(11 - y) + y² = 325

121 - 11y - 11y + y² + y² = 325

121 - 22y + 2y² = 325

121 - 325 - 22y + 2y² = 0

2y² - 22y -204 = 0

2y² - 34y + 12y - 204 = 0

2y(y - 17) + 12(y - 17) = 0

(y - 17) = 0

y = 0 + 17

y = 17

Since x + y = 11

x + 17 = 11

x = 11 - 17

x = -6

Therefore, x³ + y³

= (-6)³ + (17)³

= -216 + 4913

= 4697

7.
Potassium-42 has a half-life of 12.4 hours. How much of an 848 gram sample of potassium-42 will be left after 62.0 hours?

Answers

Hello! I found this when I searched it up on the app Socratic! Hope this helps!

The required amount of potassium-42 left after 62.0 hours is 26.5 grams.

Given that,
Potassium-42 has a half-life of 12.4 hours. How much of an 848-gram sample of potassium-42 will be left after 62.0 hours is to be determined.

What is the half-life of the element?

The half-life of the element is defined as the time span in which the element grows or decays half of its whole composition of growth and decay.

Here,
Amount left of the potassium after 62 hours is given as,
A = 848 [1 / 2 ] ⁶²/¹²°⁴
A = 26.5 gram

Thus, the required amount of potassium-42 left after 62.0 hours is 26.5 grams.

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The expression 3(x - 9) is equivalent to....

A. 3(x)+9

B. 3(x)+3(9)

C. 3(x) – 9

D. 3(x) – 3(9)

Answers

Answer:

d

Step-by-step explanation:

3(x - 9)

3×x - 3×9

3(x) - 3(9)

Please help me out with this!

Answers

Answer:

X=9.8

Step-by-step explanation:

Sin=opposite/hypotenuse

Sin33=x/18

X=18sin33=9.8

What expression is equal to 7x(2+3)

Answers

Answer:

14x+21x if thats an option

Step-by-step explanation:

where are the answer choices?

YOU GO TO THE STORE WITH $100.  YOU HAVE A LIST OF THINGS TO BUY THAT WILL COST $70 IN TOTAL.  YOU WANT TO BUY OREOS.  OREOS COST $3 A PACK.  HOW MANY PACKS OF OREO COOKIES CAN YOU BUY?
Write an equation and solve this

Answers

Answer:

10

Step-by-step explanation:

First, you would subtract 100-70 to get 30

Then, you would do 30/3 to learn that you could still buy 10 packs of Oreos with the remaining money.

How old is a tree with circumference of 62.83 cm?

Answers

Step-by-step explanation:

19.9 is the age of the tree.

divide the circumference with 3.142 .

hope this helps you☺️☺️

Review the table of values for function g(x).

x

g(x)

28.9

–3.751

28.99

–3.76

28.999

–3.9

29

undefined

29.001

–4.1

29.01

–4.24

29.1

–4.249

What is Limit of g (x) as x approaches 29g(x), if it exists?

–4.25
–4
–3.75
DNE

Answers

Answer:

the answer is b

Step-by-step explanation:

The Limit of g(x) as x approaches 29 is DNE.

What is Function?

A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable).

We have a function g(x).

In the given table we have different values of x corresponds to g(x).

Now, the value for x= 29 is not given in the table which is not defined.

and, if the value is not defined then it is also infinity.

So, the limit of g(x) tends to 29 is DNE.

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Find Slope and Y Intercept
5y = 2x + 1

Answers

Answer:

[tex] slope \: (m) = \frac{2}{5} \\ \\ y - intercept \: (b) = \frac{1}{5} [/tex]

Step-by-step explanation:

[tex]5y = 2x + 1 \\ \\ \therefore y = \frac{2x + 1}{5} \\ \\\therefore y = \frac{2}{5} x + \frac{1}{5} \\ \\ equating \: it \: with \\ \\ y = mx + b \: we \: find : \\ \\ slope \: (m) = \frac{2}{5} \\ \\ y - intercept \: (b) = \frac{1}{5} [/tex]

the slope is 2/5 and the y intercept is (0, 1/5)

Is this set of ordered pairs a function or not a function?
{(3, 2) (3,5) (4, 6) (7, 8)}

Answers

Answer:

Not a function

Step-by-step explanation:

The reason the ordered pairs are not a function is because there is no real equation that can get the correct x and y for each. Along with 3 being a x-value twice, which is also a key sign that it's not a function.

name three of the main powers of the executive branch

Answers

The executive branch is headed by the president, whose constitutional responsibilities include serving as commander in chief of the armed forces; negotiating treaties; appointing federal judges (including the members of the Supreme Court), ambassadors, and cabinet officials; and acting as head of state.

This will help you.

They:

-Take care that the laws be faithfully executed

-Serve as commander in chief of the armed forces

-Carries out and enforces laws

The President of the United States is the head of the executive branch. It includes the president, vice president, the Cabinet, executive departments, independent agencies, and other boards, commissions, and committees.

Hope I was able to help. :DDD

The surface area of a cylinder is 602.88. If the dimensions of the cylinder are
halved, what is the surface area of the new cylinder?
O A. 301.44
O B. 4823.04
O C. 2411.52
O D. 150.72

Answers

Answer:

you all have to divide by 2

Step-by-step explanation:

602.88÷2= 301.44

Consider the system of linear equations and the matrix equations below.
- X+ 3y = 2
4x - 2y = 22
-1
3
Х
2
4
-2
22
What is the value of x in the equation?
-36
3
7
64

Answers

9514 1404 393

Answer:

  x = 7

Step-by-step explanation:

Using Cramer's rule, the value of x is ...

  [tex]x=\dfrac{\left|\begin{array}{cc}2&3\\22&-2\end{array}\right|}{\left|\begin{array}{cc}-1&3\\4&-2\end{array}\right|}[/tex]

  x = ((2)(-2) -(22)(3))/((-1)(-2) -(4)(3)) = (-4-66)/(2-12) = -70/-10

  x = 7

Determine If AB is tangent to the circle.

Answers

Answer:

no its not

Step-by-step explanation:

radius doesn't make 90 degree with AB. use Pythagoras theorem

4321 divided by 24 ?

Answers

180.0416667
But it can be rounded to 180

three consecutive integers have a sum of 255 find the integers

Answers

Answer:

Step-by-step explanation:

Givens

Let the smallest integer = x - 1    (You'll see why in a moment).

Let the middle integer = x

Let the largest ingeger = x + 1

Equation

x - 1 + x + x + 1 = 255

Solution

Combine like terms on the left.

3x - 1 + 1 = 255

3x = 255                      Divide by 3

3x/3 = 255/3

x = 85

So the smallest number is  84

The middle number is        85

The largest number is        86

Total                                  255

Do you see why I made the smallest number x - 1?

It is because the -1 and the plus 1 cancel out.

Please realize the question says consecutive integers. It does not say consecutive odd or consecutive even integers.

Ms. Florina buys a bag of different-colored rubber bands. She randomly selects a rubber
band, records the color, and returns it to the bag. She does this a total of 50 times
and selects 8 red, 18 blue, 10 green, and 14 yellow rubber bands.
Based on this information, what is the probability that Ms. Florina will select a blue rubber
band, return it to the bag, and then select a green rubber band?
Click the arrows to choose an answer from each menu.
Based on the given information, the probablity that Ms. Florina will select a blue rubber band is
Choose... and the probability that she will select a green rubber band is
Choose... The probability that she will select a blue rubber band, return it to the bag,
and then select a green rubber band is Choose...

Answers

Answer:18/25 1/5 14/25

Step-by-step explanation:

The probability we have to choose 18/25 1/5 14/25.

Ms. Florina buys a bag of different-colored rubber bands. She randomly selects a rubber.

band, records the color, and returns it to the bag. She does this a total of 50 times.

and selects 8 red, 18 blue, 10 green, and 14 yellow rubber bands.

Based on this information, what is the probability that Ms. Florina will select a blue rubber

band, return it to the bag and then select a green rubber band

Click the arrows to choose an answer from each menu.

What is the formula for probability?

It is expressed as, Probability of an event P(E) = (Number of favorable outcomes) ÷ (Sample space).

Based on the given information, the probability that Ms. Florina will select a blue rubber band is,

Therefore the probability we have to choose 18/25 1/5 14/25.

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(MATH) (6) ((PHOTO))
label is yd​

Answers

Answer:

L = 8yd

Step-by-step explanation:

Volume of a rectangular prism = L × W × H

L×5¾yd×2½yd = 115 yd³

14⅜L = 115

L = 115 ÷ 14⅜

L= 8

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