1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Neko [114]
3 years ago
7

Richard and Teo have a combined age of 37. Richard is 13 years older than twice Teo's age. How old are Richard and Teo?

Mathematics
1 answer:
marysya [2.9K]3 years ago
8 0

Answer:

Teo is 8 years old and Richard is 29 years old

Step-by-step explanation:

Let us solve the question

Assume that Teo is x years old

∵ Teo is x years old

∵ Richard is 13 years older than twice Teo's age

→ It means multiply x by 2, then add 13 to get the age of Richard

∴ Richard's age = 2x + 13

∵ Richard and Teo have a combined age of 37 years

→ Add their ages and equate the sum by 37

∴ x + 2x + 13 = 37

→ Add the like terms

∵ (x + 2x) + 13 = 37

∴ 3x + 13 = 37

→ Subtract 13 from both sides

∵ 3x + 13 - 13 = 37 - 13

∴ 3x = 24

→ Divide both sides by 3 to find x

∴ x = 8

∵ x represents Teo's age

∴ Teo is 8 years old

→ Substitute the value of x in the expression of Richard age to find his age

∵ Richard age = 2(8) + 13 = 16 + 13 = 29

∴ Richard is 29 years old

∴ Teo is 8 years old and Richard is 29 years old

You might be interested in
Buffy just put some money into a CD that pays 10.1% interest, compounded monthly. According to the rule of 72, in approximately
quester [9]
Let the principal be 'x' then the Amount will be 4x.

As the interest is compounded monthly:

Rate of interest = 10.1 % = 10.1/(100*12) = 0.101/12 

Time = 12t

Amount = Principal[1 + Rate/100]

⇒ 4x = x[1 + 0.101/12]¹²t

⇒ 4x/x [1 + 0.008416667]¹²t

⇒ 4 = [1.008416667]¹²t

⇒ log(4) = log[1.008416667]¹²t

⇒ 0.602059991327 = [0.003640014891]¹²t

⇒ 12t = 0.602059991327/0.003640014891

⇒ 12t = 165.400419876

⇒ t = 165.400419876/12

t = 13.78 years  or 13 years 9 months.

So, it is about 13 years 9 months she will have 4 times the amount of money.
5 0
3 years ago
Read 2 more answers
Solve for x −7x > 10
swat32

Answer:

x <  -  \frac{5}{3}

Step-by-step explanation:

x - 7x > 10 \\ subtract \: x \: to \: 7x \\  \\  - 6x > 10 \\ divide \: both \: sides \: by \:  - 6 \\  \\ x <  -  \frac{5}{3}

3 0
3 years ago
A scientist is experimenting with bacteria in his laboratory He starts out with 3 bacteria
never [62]
X+1 to the second power
6 0
3 years ago
If you could help that would be nice!
Arturiano [62]
6 + 4 + 4 = 14 cm
2 * pi * r = 
2 * 3.14 * 3 = 18.84 / 2 = 9.42
14 + 9.42 = 23.42
5 0
3 years ago
Read 2 more answers
you must attend a minimum of 85% of the practices in order to play in the playoffs you have made 37 of the 42 practices will you
Deffense [45]
Yes, you'd be able to play.
37/42 = .88 = 88%
So you've attended more than 85% of the practices.
3 0
3 years ago
Other questions:
  • The equation of the blue line is y = –x + 5. Manipulate the orange line by setting the sliders so its slope, m, is –1 and its y-
    8·2 answers
  • What is 10+10x20 please help
    5·2 answers
  • The earth rotates 360 degrees every day. If I wanted to experience a 90 degree clockwise rotation, where would i need to stand a
    10·1 answer
  • Evaluate 1^3 + 2^3 +3^3 +.......+ n^3
    8·1 answer
  • Solve the equation: 7x = 7.7 x = ?
    14·2 answers
  • I NEED HELP!!!!!!! PLZ don’t answer just for points. ONLY do that if someone already helped me
    5·2 answers
  • The point (x,y) is proportional to the point (2, 5).
    5·1 answer
  • What's an equation that the answer would be x= -3?
    8·2 answers
  • The length of the base of a parallelogram is 21 inches. The parallelogram has an area of 357 square inches. What is the height o
    12·2 answers
  • In a basketball game, Shawna made 8 baskets, each worth 3 points.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!