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Mr Tan invested 35,000 and Mrs Tan invested 45,000

The equation to solve this is given by:

mr Tan's money x

Mrs Tan's money x + 10000

x times .05 + (x + 10000) times .05 = 4000

solve for x

Loringh

Posted on Nov 07, 2008

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Posted on Jan 02, 2017

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Fixed deposits are one of the most safe and secure ways of investing. Besides it there is one more option which you must explore, and i.e., Public Provident Fund. PPF has a lot of edge over most other types of investments not only it provides a high rate of interest of around 8%, but also it can help you enjoy tax exemptions.

Before you invested in PPF you also must some money out for your expenses and insurance coverage. After you have sidelined some money for your other expenses and investments you can keep investing in PPF for a period of 15 years and you can extend the period by 5 more years. The current limit to PPF is Rs. 1,50,000/-. If after investing in it if you still have funds remaining to invest then you can invest in FDs and choose a return type of monthly, quarterly, half-yearly or annually.

Before you invested in PPF you also must some money out for your expenses and insurance coverage. After you have sidelined some money for your other expenses and investments you can keep investing in PPF for a period of 15 years and you can extend the period by 5 more years. The current limit to PPF is Rs. 1,50,000/-. If after investing in it if you still have funds remaining to invest then you can invest in FDs and choose a return type of monthly, quarterly, half-yearly or annually.

Oct 16, 2017 | Finance

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...

A=P(1+i)^n, where P is the Principal, i is the interest rate per period, and n is the number of periods.

A=10,000(1+0.075)^3, assuming the interest is compounded annually

For 30 years, we would replace the number of period 3 with a 30.

Good luck,

Paul

A=10,000(1+0.075)^3, assuming the interest is compounded annually

For 30 years, we would replace the number of period 3 with a 30.

Good luck,

Paul

Apr 05, 2014 | Texas Instruments TI 30XIIS Scientific...

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 Computers & Internet

T bills are purchase at a discount rate. In your case you paid $9,881.25 for a $10,000.00 bill. Your earnins is to difference between $9881 and 10,000 ($119). $119 is approx. .1% over 13 weeks.

Feb 20, 2010 | Simply Media Simply Money & Personal...

FV = 12,000

PV = -10,000

N = 5

I/Y = 3.71%

PV = -10,000

N = 5

I/Y = 3.71%

Jan 26, 2009 | Texas Instruments BA-II Plus Calculator

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 &...

A positive number is 5 times another number.If 21 is added to both the numbers,then one of the new numbers becomes twice the other number.What are the numbers

Nov 29, 2007 | Computers & Internet

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