Question about Super Tutor Trigonometry (ESDTRIG) for PC

1 Answer

Exponential growth an amount was invested 2 yrs. ago at a rate of 7% became 5143.how much was the amount?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Vice President:

    An expert whose answer gotĀ voted for 100 times.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

  • Expert
  • 185 Answers

Rounding off some numbers to keep it simple would give a starting amount of 4500


Loringh

Posted on Nov 07, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a starting amount of $2,125. I invest some of it in a bank that pays 4% a year and some in another back that pays 5% a year. After one year I have earned $100. How much money did I invest in ea


There are 2 values for interest, say R and r, and R = 0.05, r = 0.04

There are 2 values for the amount earned, from the 2 banks, say I and i, and we know I + i = 100

There are 2 values for principal invested, say P and p, and we know P + p = 2125

There is only one value for period, say t = 1

So then I = P * 0.05 * 1 and
i = p * 0.04 * 1 and
I + i = 100 and
P + p = 2125

then

0.05P + 0.04p = 100
P + p = 2125
P = 2125 - p
0.05 ( 2125 - p) +0.04p = 100
106.25 - 0.05p + 0.04p = 100
106.25 - 0.01p = 100
0.01p = 6.25
p = 625
so
P = 2125 - 625 = 1500

so the amounts were $1500 and $625

Oct 20, 2014 | Mathsoft StudyWorks! Middle School Deluxe...

1 Answer

How was mauna loa formed


OK, the whole Hawaiian Island chain is volcanic, formed from volcanoes which rose in turn from the ocean floor, erupted, formed an island around, then became less and less active in turn as the whole island chain moves away to the NW at 2 - 4 in per year.

Mauna Loa is one of 5 volcanoes which have formed the main island Hawaii. It is still active, and is a wide flattish volcano 4169 metres above sea level (13 679 ft).

It probably started erupting under the sea about 700 000 yrs ago, and rose above the surface about 400 000 yrs ago. It is a young volcano in geological terms as the oldest rocks found on its surface are 200 000 yrs old.

There is heaps more info here, but take care as some teachers do not like you to quote Wikipedia as a reference.

http://en.wikipedia.org/wiki/Mauna_Loa

Sep 19, 2014 | The Learning Company ClueFinders 5th Grade...

1 Answer

What are exponential functions ?


http://www.freemathhelp.com/exponential-functions.html

Apr 30, 2014 | Mathsoft Educational & Reference Software

1 Answer

Pls i need equation for :- The sum of N1200 is invested in three project X,Y,Z at the ratio of 4,5,6 respectively. The expected cash inflow per annum is N700. the combined income for projects X and Y is...


Two ways to get to the same answer:
1) If X,Y, & Z are invested in the ratio of 4:5:6 then the amount invested in Z is 6/(4+5+6) times the total of N1200
= 6/15 * 1200
= N480
(Note: X is 4/15 and Y is 5/15 of the total investment,
4/15 + 5/15 + 6/15 = 15/15)
2) The second sentence says: Income from X plus income from Y minus income from Z is N140 and total income is N700. Total income is 700/1200 of the investment.
As formulas:
(Inc X + Inc Y) - Inc Z = 140 (rewriting: Inc X + Inc Y = 140 + Inc Z)
Inc X + Inc Y + Inc Z = 700
Substituting second formula into third:
(140 + Inc Z) + Inc Z = 700
140 + 2 Inc Z = 700
2Inc Z = 700 - 140 = 560
Inc Z = N280
Inc Z is also 700/1200 of investment in Z.
N280 = 700/1200 investment in Z
Investment in Z is 1200/700 * N280
Investment in Z is N480.

Feb 19, 2014 | Bagatrix Educational & Reference Software

1 Answer

Word problem algebra


From my previous solution:
a) =N280
b) =N280 + N140 = N420
c) = 1200*5/15 = N400

Feb 19, 2014 | Bagatrix Educational & Reference Software

1 Answer

Money is borrowed at 7% simple interest after one year $833.53 pays off the loan how much was originally borrowed?


Let a be the amount borrowed. After one year @7% yearly interest rate, the borrower must repay a(1+0.07)=833.53
The amount borrowed is a =833.53/(1.07)=779
The loan was $779

Jul 06, 2012 | MathRescue Word Problems Of Algebra Lite

1 Answer

How to I use the exponential with I(t)=Ioe^-t/t


Actually, your function is not a function at all: it is a constant. In the denominator of the exponent, there should be another symbol, such as T but not t, because t/t is equal to 1. T is the period of the decay (half life.)

This being said, the exponential is represented by [e^x]. The syntax will depend on the calculator you have at your disposal.

To enter the exponential you need the change sign (negation) (-), and generally the whole exponent must be enclosed in parentheses

[e^x] [( ] ) (-) t [/] T [ ) ]


Feb 15, 2010 | Sony The Cartoon Guide to Physics...

1 Answer

English


Let x = the investment return at 8%

Then x + 350 = the investment return at 9%

The investment at 8% + the investment at 9% = $2350 or x + x + 350 = 2350

Solving for x gives x=1000 Return at 8% was $1000 Return at 9% was %1350

Investment at 8% is formulated as follows. Y = (Initial investment) (.08) = $1000
.08Y = $1000 Y=$12,500 Using the same process for the 9% investment yields an initial investment of $15,000

Initial Investment at 8% = $12,500

Initial Investment at 9% = =$15,000


Hope this helps Good Luck Loringh

Sep 13, 2008 | Bagatrix Algebra Solved! 2005 (105101) for...

1 Answer

Mathematical Calculation


Following formula we can use.

S=P(1+RT)
WHERE S =INVEST AMOUNT+PROFIT
P=INVEST AMOUNT
R= RATE OF RETURN
T=TIME IN YEARS

EX : (300+x) = x(1+(5.4/100)*1)
(300+x)*100 = 105.4x
x=30000/5.4
x=5555. 4

Jan 05, 2008 | The Learning Company Achieve! Math &...

Not finding what you are looking for?
Educational & Reference Software Logo

Related Topics:

94 people viewed this question

Ask a Question

Usually answered in minutes!

Top Super Tutor Educational & Reference Software Experts

k24674

Level 3 Expert

7993 Answers

ka4iup
ka4iup

Level 3 Expert

3944 Answers

Geoffrey White
Geoffrey White

Level 3 Expert

3961 Answers

Are you a Super Tutor Educational and Reference Software Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...