Question about Mathsoft Solving and Optimization Extension Pack III (46513) for PC

__Christine__,

(D=Dad's age, and S=Son's age)

D=S+20 (Dad is 20 years older than Son)

D+10 = 2xS (In ten years Dad will be twice Son's current age)

therefore (by substitution):

S+20+10 = 2xS

S+30 = 2S

2S = S+30

2S-S = 30 (subtract S from both sides)

**S = 30 (Son's current age) *answer***

D = S+20

D = 30+20

**D = 50 (Dad's current age) *answer***

In ten years, Dad will be 60, which is twice Son's current age of 30.

Please ask for -Gort.

Posted on Aug 27, 2010

Hi,

a 6ya expert can help you resolve that issue over the phone in a minute or two.

best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).

click here to download the app (for users in the US for now) and get all the help you need.

goodluck!

Posted on Jan 02, 2017

Well, Tom is 3 x 5 = 15 yrs now. Sam has 15 yrs to go to 20. Then Tom will be 15 + 5 = 30 yrs.

Or, Tom is 10 yrs older than Sam now, so when Sam is 20........

Or, Tom is 10 yrs older than Sam now, so when Sam is 20........

May 15, 2015 | GPS

Let m be Marian's age, d Diana's age and c Carlos age.

I hope I helped :)

- sum of ages is 17: m+d+c=17
- two years from now Marian will be twice as old as Diana: m+2=2*(d+2) so m+2=2d+4 so 2d=m-2 or d=(m-2)/2=m/2-1
- Carlos will be half as old as Marian 4 years from now: c+4=1/2(m+4) or c+4=m/2+2 or c=m/2-2
- now: m+d+c=m+m/2-1+m/2-2=17
- 2m=17+3=20
- m=20/2=10 years
- d=m/2-1=5-1=4 years
- c=m/2-2=5-2=3 years

I hope I helped :)

Sep 18, 2011 | Office Equipment & Supplies

Hi

Never.

Even a February 29th Leap Year birthday only rings their ages within 11-12 years of each other.

Never.

Even a February 29th Leap Year birthday only rings their ages within 11-12 years of each other.

Aug 27, 2011 | TOPICS Entertainment College Pro...

Let the brother's age be x:

16years for Mary = 4x years for Brother

From equation: 4x = 16

x = 4

Therefore, the brother is 4 years old.

__Mary__ __ Brother__

16 4

After 4 years +__4 4__

20 8

After the next 4 years +__4 4__

24 12

24 is twice as old as 12; therefore for the sister to be twice as old as brother she will 24years when her brother is 12 years.

Or by calculation;

If 4 is the age for the brother, when the sister is 16, and y years will pass for the to be such that the sister is twice as old as the brother, then;

16 + y = 2(4 + y)

16 + y = 8 + 2y

16 - 8 = 2y - y

8 = y

Therefore, 8 years elapse before the sister is twice as old as the brother.

Sister will be: (16 + 8) = 24years

Brother will be: (4 + 8) = 12years

16years for Mary = 4x years for Brother

From equation: 4x = 16

x = 4

Therefore, the brother is 4 years old.

16 4

After 4 years +

20 8

After the next 4 years +

24 12

24 is twice as old as 12; therefore for the sister to be twice as old as brother she will 24years when her brother is 12 years.

Or by calculation;

If 4 is the age for the brother, when the sister is 16, and y years will pass for the to be such that the sister is twice as old as the brother, then;

16 + y = 2(4 + y)

16 + y = 8 + 2y

16 - 8 = 2y - y

8 = y

Therefore, 8 years elapse before the sister is twice as old as the brother.

Sister will be: (16 + 8) = 24years

Brother will be: (4 + 8) = 12years

Aug 02, 2011 | Computers & Internet

No answer available - Barry isn't mentioned in the equation, and there are four people mentioned in the question.

Apr 05, 2011 | Computers & Internet

Hahahaha, Aaala!
Kafi sochna para, is tarha ho ga mere khyaal se;

140 Saal teenoN ki mila k banti hay;

Pota:** 7Years**

Baap:**49Years**

Dada:**84Years**

**7+49+84 = 140 (Theek)**

Pota kitnay Month ka = 7 x 12 = 84 **=>** Dada ki umer in years** (Theek)**

Pota kitnay Din ka = 7 x 365 = 2555din **=>** Baap ki umer in weeks [ (49x365) / 7 ] = 2555 (**Ye be Theek**)

*Concerned, Nooh bin Sikander*

140 Saal teenoN ki mila k banti hay;

Pota:

Baap:

Dada:

Dec 18, 2010 | Computers & Internet

Father is 40 and child is 10

then 45 and 15

then 45 and 15

Dec 18, 2010 | Computers & Internet

Within 11 years, the age of Peter will be half the square of the age he was 13 years ago. Calculate the current age of Peter.

Suzy is ten years older than Billy, and next year she will be twice as old as Billy. How old are they now?

Suzy is ten years older than Billy, and next year she will be twice as old as Billy. How old are they now?

Sep 22, 2010 | Computers & Internet

Hi,

Let the present age of the Rodney = X

present Age of the Jasmin = Y

As per the Situation,

Y-9 = 2 (X - 9)

Y-9 = 2X - 18

Y = 2X - 18 +9

Y = 2X-9

Second,

X + Y = 45

Y = 45 - X

Taking Both the situations,

2X - 9 = 45 - X

3X = 54

X = 54/3 = 18

Y = 45 - 18 = 27

Hence,

Age of Jasmin = 27

Let me know, if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Let the present age of the Rodney = X

present Age of the Jasmin = Y

As per the Situation,

Y-9 = 2 (X - 9)

Y-9 = 2X - 18

Y = 2X - 18 +9

Y = 2X-9

Second,

X + Y = 45

Y = 45 - X

Taking Both the situations,

2X - 9 = 45 - X

3X = 54

X = 54/3 = 18

Y = 45 - 18 = 27

Hence,

Age of Jasmin = 27

Let me know, if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Mar 17, 2010 | Disney Watches

Edwin is 14. Ruel is 7.

In 3 years Edwin will be 17. Edwin will be 10. (3*10 - 13 = 17)

Let x=Ruel's age now, and 2x=Edwin's age now.

2x+3=3(x+3)-13

2x+3=3x+9-13

2x+3=3x-4

2x+7=3x

7=x

If you are going to post these, the least you could do is rate them as Fixya. :-) Thanks!

In 3 years Edwin will be 17. Edwin will be 10. (3*10 - 13 = 17)

Let x=Ruel's age now, and 2x=Edwin's age now.

2x+3=3(x+3)-13

2x+3=3x+9-13

2x+3=3x-4

2x+7=3x

7=x

If you are going to post these, the least you could do is rate them as Fixya. :-) Thanks!

Dec 11, 2008 | Computers & Internet

233 people viewed this question

Usually answered in minutes!

×