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
harina [27]
3 years ago
15

Abby is half as old as her dad and as twice as old as her brother. if her brother is 9 years old how old is her dad?

Mathematics
2 answers:
Likurg_2 [28]3 years ago
6 0
Let Abby's father's age be x.
Then Abby's age = 1/2 x or her father's age= 2* Abby's age
Abby's brother's age = 9 years
So, Abby's age= 2*9= 18 years
∴ her father's age = 2*18 =36 years
ExtremeBDS [4]3 years ago
4 0
A=D/2
A=2B
B=9
A=2 (9)
A=18
18=D/2
*2 both sides
D=36
You might be interested in
If you can walk 3 1/3 miles in an hour, how many miles can you walk in 30 minutes, given the
Vedmedyk [2.9K]

Answer:

d = 1.67 miles

Step-by-step explanation:

Given that,

Speed of a person,  s=3\dfrac{1}{3}\ mph

We need to find how many miles can you walk in 30 minutes, given the  same pace.

30 minutes = 0.5 h

3\dfrac{1}{3}\ mph = \dfrac{10}{3}\ mph

Speed = distance/time

d=v\times t\\\\d=\dfrac{10}{3}\ mph\times 0.5\ h\\\\d=1.67\ miles

So, the person will cover a distance of 1.67 miles

8 0
3 years ago
2/8 + 6/12 what is that eqaul to
Papessa [141]
\frac{2}{8} +  \frac{6}{12} \\ \\  \frac{1}{4} +  \frac{1}{2} \\ \\ LCD = 4 \\ \\  \frac{1}{4} +  \frac{2}{4} \\ \\  \frac{1+2}{4} \\ \\  \frac{3}{4} \\ \\ Answer: \fbox {3/4} \ or \ \fbox {0.75}
8 0
3 years ago
Read 2 more answers
Find the sum of the interior angles of a regular 14-gon.
Ira Lisetskai [31]

9514 1404 393

Answer:

  2160°

Step-by-step explanation:

The sum of interior angles of a convex n-gon is ...

  angle sum = 180(n -2)°

When n=14, the angle sum is ...

  angle sum = 180(14 -2)° = 2160°

4 0
3 years ago
PLEASE HELP GIVING 50 POINTS!!
PSYCHO15rus [73]

Answer:

  y = 18

Step-by-step explanation:

Direct variation means y will change by the same factor x does. When x changes by a factor of 15/10 = 1.5, the value of y will change by that same factor

  x = 10, y = 12

  x= 15, y = 1.5×12 = 18

The new value of y is y = 18.

_____

Written as a proportion, you have ...

  y/15 = 12/10

  y = 15×12/10 = 18

__

Written as a direct variation equation, you have ...

  y = kx

  12 = k·10   ⇒   k = 1.2

  y = 1.2·15 = 18 . . . . for x=15

4 0
2 years ago
(sorry bout the other one I forgot to put the picture and it wouldn't let me delete)
Sergio039 [100]
I’m pretty sure it is.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Six less than the product of four and a number x
    7·2 answers
  • 2. Simplify the sum or difference. 4 sqrt 2 - 7 sqrt 2
    7·1 answer
  • 6. Simplify:<br> (1) (37 - (-8)]+[11 - (-30)]<br> Plz answer
    14·2 answers
  • Simplify completely 2x-24 over 8
    7·1 answer
  • Help, please!!!!!!!!!!!!!!!!!!!!!!
    5·1 answer
  • Simplify: – 8p3 (9p4 +8p)
    5·1 answer
  • 12 + x - 8 = 3 + 2x<br> Solve for x
    5·1 answer
  • The width of a rectangle is 6 less than the length. A second rectangle with perimeter 54, is 3 wider and 2 shorter than the firs
    8·1 answer
  • The figure is made up of a cylinder and a half sphere. What is the volume of the composite figure? Use 3.14 for Pi. Round to the
    6·2 answers
  • Write a rule for the functionplease help because I'm confusion
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!