Laura invested $24,000 into a simple interest account. If at the end of 54 months Laura has $27,780 in her account, what was the interest rate? (Round to the nearest hundredth, if necessary)

Answers

Answer 1

Answer:

3.5%

Step-by-step explanation:

First you need to know the simple interest and the amount formulas. This is as expressed as;

Interest I = PRT/100 ... 1

Amount A = P+I ...2

From 2;

I = A - P ....3

Substitute 3 into 1

A - P = PRT/100

Given the following

Amount A = $27,780

Principal P = $24000

Time T = 54/12 yrs

Required

Rate R

Substitute

$27,780 -  $24000 =  24000 * R * 54/1200

3,780 = 20 * 54R

3780 = 1080R

R = 3780/1080

R =  3.5%

Hence the interest rate is 3.5%


Related Questions

If ADC measures 35º, what does

Answers

Answer:

by inscribed angle rule do it.

Step-by-step explanation:

hope this help

Answer:

70°

Step-by-step explanation:

∠ADC is a inscribed angle. ∠ABC is a central angle. The inscribed angle's measurement will be 1/2 of the measurement of the central angle.

In this case, the inscribed angle ∠ADC is given to you with a measurement of 35°. To solve for ∠ABC, multiply 2 to the given value:

35 x 2 = 70

70° is your answer.

~

1355 + 0540 add as n military time btw this is a military time answer also im on mobymax

Answers

Answer:

1895

Step-by-step explanation:

1355+540=1895-1200=695 which converts to 07:35

(-10) x 0x ( -15 ) =​

Answers

0 because any expression multiplied by 0 equals 0

Find TWO factors that are equivalent to 1/2

Answers

Answer:

6/12, 4/8

Step-by-step explanation:

A restaurant can seat 100 diners. Four of
the tables can each seat 6 people. The
rest of the tables can each seat 4 people.
How many tables does the restaurant
have in all?

Answers

100 people

6x4= 24

100-24= 76

76÷4= 19

19+4=23

lmk if I'm wrong

Please help me in this

Answers

Answer:

top=170mm squared

shape 2=76.27 cm squared

shape 3=62.862 cm squared

Step-by-step explanation:

top shape...

(18x15)-4(5x5)=area

270-4(25)=area

270-100=area

170=area

shape 2...

diameter of circle is 6 so radius is 3...

area=pier^2

a=28.27 and their are two half circles so that makes one whole circle

(8x6)+28.27=76.27 cm squared

shape 3...

total of rectangle with a half circle subtracted.  r=4 d=8

so

11x8=88 for rectangle then subtract half circle

a=pie r^2

a=50.27

50.27/2=25.135 subtract this from rectangle total...

88-25.135=62.862 cm squared

Multiply
(2x2 – 3x)(3x2 + 2x - 1)
help plz

Answers

I hope this helps :)

this is the answer I believe

Given the arithmetic sequence of 21,
6, 9, 24,
find an explicit rule for the nth term.

Answers

Answer:

Step-by-step explanation:

The sequence you gave is not arithmetic.  I'm assuming the sequence is

21, 6, -9, -24.

d is the common difference between adjacent terms.

a₂ = a₁ + d

6 = 21 + d

d = -15

nth term = a₁ + (n-1)d = 21 - (n-1)15

What is the surface area? 4 mm 10 mm 5mm square millimeters​

Answers

Answer:

200

Step-by-step explanation:

Length*Width*Hight= 4*10*5=200

hope this helps

Answer:  I am pretty sure it is 200

Step-by-step explanation:

I may be wrong sorry if it is have a good day :)

Watch help video
Given 1 ||
т
||
n, find the value of x.
Z
(4x+6)°
т
(5x-4)
n

Answers

The Answer is
X=10

Explanation:

30 points for this A special truck cleans the surface of the ice rink shown. The figure is composed of a square and two semicircles.
85 ft
85 Ft
If the truck cleans the entire surface, how many square feet of ice will the truck clean?
Use 3.14 for . Round your answer to the nearest tenth.
The truck will clean about
square feet of ice

Answers

Answer:

12897 square feet

Step-by-step explanation:

So first find the area of the square:  

85 * 85 = 7225

Then, the two semi circles together is a full circle. Use the circle area formula,

A = πr^2

The radius (r) would be half the diameter of the circle. The diameter of the circle would be 85. So half of that is 42.5. The radius is 42.5

Now:

A = π(42.5)^2

A = 3.14(42.5)^2

A = 3.14(1806.25)

A = 5671.625

Lastly, add the two areas up for the square and circle:

7225 + 5671.625 = 12896.625

Round to nearest tenth: 12897

What does p equal Help?

Answers

Answer:

your answer will be P=27

Step-by-step explanation:

hope it helps...

Express the shaded area as a fraction, a decimal, and a percent of the whole

Answers

Answer:

Fraction : 3/9

Decimal : 0.33333333 (the .3 continues)

Percent : 33.33333%

Step-by-step explanation:

Dividing 3 by 9 will give you a continous set of 3.

3 I think will be your answer

If cos 0 = 3/radical 22 and angle 0 is in Quadrant I, what is the exact value of tan 20 in
simplest radical form?

Answers

Answer:

[tex] \tan2\theta =-\dfrac{3\sqrt{13}}{2} [/tex]

Step-by-step explanation:

To find:-

The value of [tex]\tan2\theta[/tex] .

Answer:-

We are here given that the value of,

[tex]\longrightarrow \cos\theta=\dfrac{3}{\sqrt{22}} \\[/tex]

And we know that cosine is the ratio of base and hypotenuse. Therefore,

[tex]\longrightarrow \cos\theta =\dfrac{b}{h} \\[/tex]

So we can also say that,

[tex]\longrightarrow \cos\theta = \dfrac{b}{h}=\dfrac{3}{\sqrt{22}}\\[/tex]

Let us take the given ratio to be 3x:22x . Now we may find out the value of perpendicular using Pythagoras theorem . The Pythagoras theorem is ,

Pythagoras theorem:-

In a right angled triangle the sum of squares of perpendicular and base is equal to the square of hypotenuse.

Mathematically,

[tex]\longrightarrow \boxed{ \boldsymbol{p^2+b^2=h^2}} \\[/tex]

where the symbols have their usual meaning.

On substituting the respective values, we have;

[tex]\longrightarrow p^2+(3x)^2=(\sqrt{22}x)^2 \\[/tex]

[tex]\longrightarrow p^2 = 22x^2-9x^2\\[/tex]

[tex]\longrightarrow p^2=13x^2 \\[/tex]

[tex]\longrightarrow \boldsymbol{ p = \sqrt{13}x} \\[/tex]

Now again , we know that, tangent is defined as the ratio of perpendicular and base. Therefore,

[tex]\longrightarrow \tan\theta = \dfrac{p}{b} \\[/tex]

[tex]\longrightarrow \tan\theta = \dfrac{\sqrt{13}x}{3x}\\[/tex]

[tex]\longrightarrow \boldsymbol{ \tan\theta = \dfrac{\sqrt{13}}{3}}\\[/tex]

Now we may use a identity which is ,

[tex]\longrightarrow\boxed{ \boldsymbol{ \tan (2x)= \dfrac{2\tan x}{1-\tan^2 x}}}\\[/tex]

On substituting the respective values, we have;

[tex]\longrightarrow \tan2\theta = \dfrac{ 2\tan\theta}{1- \tan^2\theta}\\[/tex]

[tex]\longrightarrow \tan2\theta = \dfrac{2\bigg(\dfrac{\sqrt{13}}{3}\bigg)}{1-\bigg(\dfrac{\sqrt{13}}{3}\bigg)^2 } \\[/tex]

[tex]\longrightarrow \tan2\theta = \dfrac{\dfrac{2\sqrt{13}}{3}}{1-\dfrac{13}{9}} \\[/tex]

[tex]\longrightarrow \tan2\theta = \dfrac{\dfrac{2\sqrt{13}}{3}}{\dfrac{9-13}{9}} \\[/tex]

[tex]\longrightarrow \tan2\theta = \dfrac{\dfrac{2\sqrt{13}}{3}}{\dfrac{-4}{9}} \\[/tex]

[tex]\longrightarrow \tan2\theta = -\dfrac{2\sqrt{13}\cdot 9}{3\cdot 4 } \\[/tex]

[tex]\longrightarrow \boxed{\boldsymbol{ \tan2\theta = -\dfrac{3\sqrt{13}}{2}}} \\[/tex]

This is the required answer .

What is 7 rounded to the nearest whole number?

A. 2244

B. 3205

C. 3846

D. None of the above

Answers

D. None of the above

the correct answer is 7,460 as some non native english is the correct answer to the question

Mrs. Spina bought 4 boxes of 8 pork chops. She set aside 12 and separated the rest into packs of4 to freeze. How many packs of chops did Mrs. Spina freeze

Answers

Step-by-step explanation:

Number of pork chops Mrs Spina bought =

Number of boxes x number of pork chops per box

= 4x8

= 32

Number of Pork chops to freeze = 32 - 12 (set aside) = 20

Number of packs of pork chops to freeze = Number of pork chops to freeze / pork chops per pack

= 20/4

= 5 packs.

HELP ASAP PLEASE EMERGENCY! Find the area of the shape shown below

Answers

Answer:

IT SHOULD BE 240

Step-by-step explanation:

1) Multiply 20 by 10 for 200

2) Lenght=20 so half is 10

3) multiply 10 by 4 and divide by 2 which gives 20

4) Multiply 20 by 2 because there are 2 rectangles which gives us 40

5) Add 200 and 40 which gives answer of 240

Can someone please give me the answer I will mark u brilliant

Answers

Rounding the answer is 100.

Answer:

200

Step-by-step explanation:

Volume of juice

[tex] = 3.5 \times 6 \times 9 \\ = 189 \\ \approx \: 200 \: {cm}^{3} [/tex]

find the slope of the function: y²+x²y+x²=1 at the point (-1,2)​

Answers

Slop mean got first derivative

I solve in photo
I got
y=x-3
Let me know if that’s right

Fell free to give brainily as it would help a lot

Need help on this please still lost on this one

Answers

It should be 6.25 pi
That would be6.25 square meters!

Can someone help me solve for x please it’s urgent

Answers

Answer:

37.5

Step-by-step explanation:

16/46 = 20/(20+x)

or, 16(20+x) = 46×20

or, 320 + 16x = 920

or, 16x = 600

or, x = 600/16

x = 37.5

Admission prices at a football game were $5 for adults and $ 2 for children.

The total value of the tickets sold was $2520, and 654 tickets were sold. How many adult

tickets and how many child tickets were sold?

Show all six steps.

Answers

Answer:

404 adult tickets were sold, and 250 child tickets.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that

x is the number of adult tickets sold.

y is the number of child tickets sold.

654 tickets were sold.

This means that

[tex]x + y = 654[/tex]

[tex]y = 654 - x[/tex]

Admission prices at a football game were $5 for adults and $ 2 for children. The total value of the tickets sold was $2520.

This means that

[tex]5x + 2y = 2520[/tex]

Since [tex]y = 654 - x[/tex]

[tex]5x + 2(654 - x) = 2520[/tex]

[tex]5x + 1308 - 2x = 2520[/tex]

[tex]3x = 1212[/tex]

[tex]x = \frac{1212}{3}[/tex]

[tex]x = 404[/tex]

[tex]y = 654 - x = 654 - 404 = 250[/tex]

404 adult tickets were sold, and 250 child tickets.


If n and k are positive integers and 8” = 2*, what is the value of n/k

Answers

Answer:

B) 1/3

Step-by-step explanation:

If n=1 and k=3, then 8^n=2^k is true. Therefore, n/k=1/3.

Which value of b would make 16x? - bx + 25 a perfect square trinomial?
a. 4
b. 5
C. 20
d. 40

Answers

9514 1404 393

Answer:

  d.  40

Step-by-step explanation:

Consider the square ...

  (px +q)² = (px)² +2(px)(q) +q² = p²x² +2pqx +q²

Comparing this to your expression, you see ...

  16 = p²   ⇒   p = ±4

  25 = q²   ⇒   q = ±5

  -b = 2pq = 2(±4)(±5) = ±40

The expression is a perfect square trinomial when b = 40.

_____

Additional comment

When the linear term has a negative coefficient, we know the signs of the binomial terms are different. We conventionally write the square with the constant term in the binomial being negative:

  16x² -40x +25 = (4x -5)²

Find the slope and the y-intercept of the graph of y−3.5=−2x.

Answers

Answer:

m = -2

b = 3.5 or (0, 3.5)

Step-by-step explanation:

y = mx + b

    m = slope

    b = y-intercept

y − 3.5 = −2x

y = -2x + 3.5

    m = -2

    b = 3.5

The slope of given equation is -2 and the y-intercept is 3.5.

What is the slope intercept form?

The slope intercept form of a straight line is one of the most common forms used to represent the equation of a line. The slope intercept formula can be used to find the equation of a line when given the slope of the straight line and the y-intercept.

The given equation is y-3.5=-2x.

Now, in slope intercept form y=-2x+3.5

The standard form of the slope intercept form is y=mx+c.

Where, m=slope and c=y-intercept

Now, m=-2 and c=3.5

Therefore, the slope of given equation is -2 and the y-intercept is 3.5.

To learn more about the slope intercept form visit:

brainly.com/question/9682526.

#SPJ2

For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 8 N acts on a certain object, the accelerstion of the object is 4 m/s2. If the acceleration of the object becomes 9 m/s?, what is the force?​

Answers

Answer:

18N

Step-by-step explanation:

According to Newtons second law

F ∝ a

F =  ka

k is the constant of proportionality

When a force of 8 N acts on a certain object, the acceleration of the object is 4 m/s2, hence;

8 = 4k

k = 8/4

k = 2

If a = 9m/s², F = ?

Recall F = ka

F = 2 * 9

F = 18N

Hence the force will be 18N

To solve this expression, which operation should be performed last?
[21-(5 + 2)]^2 x 3

A. numbers inside brackets squared

B. subtract 7 from 21

C. multiply by 3

D. add 5 to 2

Answers

D. Add 5 to 2 because you start with the parentheses first

someone help me please

Answers

Step-by-step explanation:

Hi,

You will have to move the pre-image 15 units to the right. You're also going to have to flip the image horizontally (kind of like flipping it across the x-axis) and after that, you're going to have to flip it so that it's facing the left side.

1) 15 units right

2) Flip-up

3) Flip to the left

Hope this helps :)

A researcher for a travel company is looking into the prices people are willing to pay for airplane tickets. The company has communicated that the overall population mean is $265 with a standard deviation of $40.93. The researcher has a sample of 130 ticket purchases from one location. By the central limit theorem, which interval can the researcher be 95% certain that the sample mean will fall within?

A.
$261.41 and $268.59
B.
$257.82 and $272.18
C.
$264.37 and $265.63
D.
$254.23 and $275.77

Answers

Answer:

I believe answer B.

Can Anyone help me with this assignment please

Answers

Answer: Answers are in step by step. please like and give a review.

Step-by-step explanation:

1. An obtuse angle is an angle that is greater than 90 degrees but less than 180 degrees.

2. 5x - 8 = 37 if and only if x = 9.

3. If two angles have the same measure, then they are congruent. If two angles are not congruent, then they do not have the same measure. If two angles do not have the same measure, then they are not congruent.

4. 2x + 5 = 3 , then x = 3

5. With 3 equal sides is a equilateral triangle

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