Question about Super Tutor Trigonometry (ESDTRIG) for PC

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

Loringh

Posted on Nov 07, 2008

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

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...

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

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...

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

Apr 30, 2014 | Mathsoft Educational & Reference Software

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.

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

From my previous solution:

a) =N280

b) =N280 + N140 = N420

c) = 1200*5/15 = N400

a) =N280

b) =N280 + N140 = N420

c) = 1200*5/15 = N400

Feb 19, 2014 | Bagatrix Educational & Reference Software

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

The amount borrowed is

The loan was $779

Jul 06, 2012 | MathRescue Word Problems Of Algebra Lite

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 [ ) ]

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...

x=7

y=-1

y=-1

Jan 30, 2009 | Bagatrix Algebra Solved! 2005 (105101) for...

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

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...

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

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 &...

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