Mathematics High School

Frank invests $1,000 in simple interest investment account that pays 8% a year. After a number of years, he withdraws his balance of $2,200. Using the formula I = P r t, how many years was his money invested? Work backwards-but find the Interest first!

Answers

Answer 1

Answer:

15 years

Step-by-step explanation:

Given data

P=$1,000

R=8%

A= $2200

I= A-P

I=2200-1000

I=$1200

Applying the formula

I=PRT/100

1200=1000*8*T/100

cross multiply

1200*100= 8000T

120000= 8000T

divide both sides by 8000

T=120000/8000

T=15  years

Hence the time is 15 years

Related Questions

Find the length of ab!!!!

Answers

Answer:

6.4

Step-by-step explanation:

Using Pythagorean theorem (a^2+b^2=c^2), 4^2+5^2=41. The square root of 41 is 6.4.

6.4 will be your answer

HELPPP PLEASE!!!! HELP

Answers

A1 x=5
2 x=7
3 t=3
B1 x=3
2 x=2
3 z= √6

three to the fifth power
answer please​

Answers

Answer:

243

Step-by-step explanation:

Answer:

243

Step-by-step explanation:

geometry please help

Answers

I'd say C because the lengths do not have to be the same but the angles do

a 5/18
b 1/2
c 5/9
d 9/10​

Answers

Answer:It should be 5/9 as its the only one that is probable,

Step-by-step explanation:

If its not 1/2 its not 9/10 so that automautically declines 2 answers leaving 5/18 and 5/9. And 5/18 is way to little for a 36 to 20 ratio, so that leaves 5/9.

Which is heavier?


.93 kg


900 grams


12500 decigrams


1,380,000 milligrams

Answers

1,380,000 milligrams is heavier

Hope that helps :)

K is between P and Q. Suppose PQ- 10x - 16, PK - 6x + 8, and KQ-8. What is PQ?

Answers

Answer:

PQ = 64

Step-by-step explanation:

PQ = PK + KQ

10x - 16 = 6x + 8 + 8

10x - 16 = 6x + 16

4x = 32

x = 8

PQ = 10(8) - 16

     = 80 - 16

     = 64

Solve for b.

b = ✓ [?]
Enter the number
that goes beneath
the radical symbol.
9
16
b
3

Answers

Answer:

b =✓45

Step-by-step explanation:

9^2-6^2

√45

b= ✓45

i would like to know this question and can you show your work to so I can understand

Answers

Answer:

162

Step-by-step explanation:

a=[tex]\frac{a+b}{2} h[/tex]

a=base and the base is 13 ft.

b= also means base which is 23 ft.

h= height which is 9 ft.

so 13+23 is 36

36/2 is 18

and 18 times 9 is 162

sorry for the lengthy answer but i hope this helps :) have a nice day !!

A ____ of a triangle is the perpendicular segment from a vertex to the opposite side or to the line that contains the opposite side. ​

Answers

Answer:

Altitude

Step-by-step explanation:

An altitude of the triangle is the line segment from a vertex to the opposite side and perpendicular to the opposite side. The orthocenter will not always be inside the triangle. This is why the orthocenter is the point of concurrency of the lines containing the altitudes rather than just the altitudes.

The question is attached.​

Answers

Answer:

-3, uh its a short answer

I got -3
If u need the work lmk

Simplify the expression.
- 2.7f +0.31 - 14 – 5,

Answers

Answer:

Step-by-step explanation:

−2.7f+0.31−14−5

=−2.7f+0.31+−14+−5

Combine Like Terms:

=−2.7f+0.31+−14+−5

=(−2.7f)+(0.31+−14+−5)

=−2.7f+−18.69

Answer:

=−2.7f−18.69

you should look up additon and multipcation cucaltor it helps

Solve
(0.54 x 0.28)+(0.46 x 0.41)

Answers

Answer:

Step-by-step explanation:

0.3398

Answer:

Answer vary :

0.3398

Step-by-step explanation:

honestly in my opinion that’s my answer.

1. multiply (0.54 times 0.28) = 0.1512

2. multiply (0.46 times 0.41) = 0.1886

3. add 0.1512 + 0.1886 = 0.3398

and that’s how I did it.

Please help.
Is algebra.

Answers

Answer: 2m^4 n^2 it’s option D

The correct answer is D.


Find the value of a in the parallelogram shown to the right note that the figure is not drawn to scale

Answers

Step-by-step explanation:

2a+26°+58°=180°

2a=180-26-58

2a=96

a=48

2*48+26=122

○=> Correct answer :[tex]\color{plum}\tt\bold{a =16}[/tex]○=> Steps to derive the correct answer :

Given :

▪︎Measure of an angle in a parallelogram = 58°

▪︎Measure of the angle opposite this angle = (2x+26)°

We know that :

▪︎Opposite angles in a parallelogram are equal.

Which means :

[tex] =\tt 2a+ 26 = 58[/tex]

[tex] =\tt 2a = 58 - 26[/tex]

[tex] =\tt 2a= 32[/tex]

[tex] =\tt a = \frac{32}{2} [/tex]

[tex]\hookrightarrow\color{plum}\tt a = 16[/tex]

Thus, the value of a = 16

Let us now place 16 in the place of a and check whether or not we have found out the correct value of a:

[tex] =\tt 2 \times 16 + 26 = 58[/tex]

[tex] = \tt32 + 26 = 58[/tex]

[tex] =\tt 58 = 58[/tex]

Since the values in both the side match, we can conclude that we have found out the correct value of a.

▪︎Therefore, the value of a = 16

Need some help please!!! You just fill in both blanks please!!​

Answers

Answer:

a

Step-by-step explanation:

can yall help me 17 = x - 28?

Answers

Answer:

Step-by-step explanation:

For an algebra question like this you are trying to solve for the x.

The way you do that is to get x by itself.

So with

17 = x - 28

The step you want to do is to add 28 to both sides.

17 + 28 = x - 28 + 28

This makes makes the equation

17 + 28 = x

45 = x

Answer:

35

Step-by-step explanation:

Let's solve your equation step-by-step.

17=x−18

Step 1: Flip the equation.

x−18=17

Step 2: Add 18 to both sides.

x−18+18=17+18

I need help with this please

Answers

Your equation is 33B-8 pls give brainliest trying to rank up if this is correct

Which set(s) of numbers does 81−−√ belong to? Choose all that apply Natural numbers
Natural numbers

A Whole number
B Integers
C Rational Numbers
D Irrational Numbers

Answers

Answer:

All of the above

Step-by-step explanation:

in a group of 30 children, 80%can’t swim how many children can’t swim

Answers

Answer:

24

Step-by-step explanation:

80% is 0.8
30x0.8 is 24
So 24 cant swim

If you could live anywhere, where would it be?
What is your biggest fear?

Answers

Answer:

A forest and a Lion and a bear

Step-by-step explanation:

Answer:

a tropical island

Step-by-step explanation:

cuz their is farm equipment know as a

The slope of a line is -1/3, and the y-intercept is 10/3 . What is the equation of the line written in general form?

10x + 3y - 1 = 0
x + 3y + 10 = 0
x + 3y - 10 = 0

Answers

Answer:

x+3y-10=0 I hope it helps you

A car costs 20% less this year than last year. Last year, the car cost 5% less than the year before. The price of the car this year is $9,400. How much did the car cost 2 years ago?

Answers

Answer:

The answer is 11,374

Step-by-step explanation:

First we find 5% of 9,400 is.

9,400 * 5% = 470

Next we add 9,400 with 470 then multiply by 20%

9,400 + 470 = 9,870

9,870 * 20% = 1974

Next we add.

9,870 + 1,974 = 11,374

So, the answer is 11,374

Hope this helps! :)

2x = 2y - 6 and y = x - 2

Answers

Answer:

2x=2y-6 equals x-y=-3 and y=x-2 equals x=2

Step-by-step explanation:

i hope this helps

If there are 17 teachers, how many students are there?

Answers

Answer:

is there anymore to that question

Step-by-step explanation:

3h + 4, where h = 7 pls help​

Answers

Answer:

25

Step-by-step explanation:

3 (7) + 4 =

21 + 4 = 25

good luck, hope this helps :)

Answer:

25

Step-by-step explanation:

1. we need to substitute h

so it would look like:

[tex]3(7)+4\\21+4\\25[/tex]

Hope this helps and answers your question! Have a great day/night!

Internos consecutivos

Answers

Answer:

hi........................................

Ummm ok..........? Ig

-2(x-4)=4 can x=2 be the solution

Answers

Answer:

Step-by-step explanation:

-2x + 8 = 4

-2x = 4 - 8

-2x = - 4

x = - 4/-2 = 2

replace x with 2 on the equation

-4-4=4

so answer is no

-8=4 not possible

the population of san san Pablo ca is about 33,950 people. ten years ago the population was about 30,000. by what PERCENT did the popular increase between ten years ago and now?​

Answers

Answer:

ABOUT 13 PERCENT

Step-by-step explanation:

I AM NOT CERTAIN BUT I GOT IT BY:

NEW PRICE - OLD PRICE divided by OLD PRICE X 100

In the diagram below, DE is parallel to XY. What is the value of y?​

Answers

Answer:

94

Step-by-step explanation:

Y is the alternate interior angles of the degree that measures 94. This means that they are congruent so y=94

Y is also 94° due to the z pattern created by the parallel lines and the line running through them
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