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VARVARA [1.3K]
1 year ago
12

a man is three times as old as his son. In ten years time, the man will be two times as old as his. Find the age of the son and

the father
Mathematics
1 answer:
rosijanka [135]1 year ago
7 0

Answer:

age of son= X

Father's age =3x

After 10 years , father's age= 3x +10

Son's age = X+10

Operations:

3x + 10 =2(x + 10 )

3x + 10 = 2x + 20

X= 10

Therefore, present age of son= 10 years

Father's present age = 30 years

After 10 years son will be 20 years and the father 40 yes which is double

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1/x + 1/3x =6 how do you solve this equation for x
Elodia [21]

Answer:

x = 2/9 (or = 0.222)

Step-by-step explanation:

1/x + 1/(3x) =6  (multiply both sides by 3x)

(1/x) (3x)  + [1/(3x)](3x) =6 (3x)

3 + 1 = 18x

4 = 18x

x = 4/18

x = 2/9 (or = 0.222)

3 0
3 years ago
7
elixir [45]

The area of the track will be 78501 m². The area of the track is equal to the area of the circle.

<h3>What is the area?</h3>

The space filled by a flat form or the surface of an item is known as the area.

The number of unit squares that cover the surface of a closed-form is the figure's area. Square meters and other similar units are used to measure area.

The area of the track is found as;

\rm A=\frac{\pi}{4} d^2 \\\\ \rm A=\frac{3.14}{4} (100)^2 \\\\ A=7850 \ m^2

Hence, the area of the track will be 78501 m².

To learn more about the area, refer to the link;

brainly.com/question/11952845

#SPJ1

8 0
3 years ago
In a small town 15 out of every 26 people voted for the current mayor. His opponents reveived a total of 440 votes. How many peo
Fittoniya [83]

I'm sorry, but there is not enough information for me to correctly answer this question, please provide more information.


3 0
3 years ago
What fraction is <br><br>4 hours of a day<br><br>45 mins of an hour<br><br>240cm3 of a litre​
lesya [120]

4 hours of a day

1/6

45 mins of an hour

3/4

240cm3 of a litre​liter

240cm3=0.24l

6/25

8 0
3 years ago
Help me with this please
bekas [8.4K]

Answer:

f(-5) = 4(-5) + 1 = -20 + 1 = -19

f(-1) = 4(-1) + 1 = -4 + 1 = -3

f(2) = 4(2) + 1 = 8 + 1 = 9

f(3) = 4(3) + 1 = 12 + 1 = 13

f(5) = 4(5) + 1 = 20 + 1 = 21

7 0
3 years ago
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