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
Mice21 [21]
3 years ago
12

A mother is three times as old as her son and in eleven years she will be just twice his age find the present age of the son and

mother
Mathematics
1 answer:
slega [8]3 years ago
4 0

Answer: Mom = 33 Son = 11

Step-by-step explanation:

A mother is three times as old as her son

Mom age =3x

AFTER 11 YEARS:

Son’s age =x+11

Mom’s age =3x+11

Also, she will be just twice his age

3x+11 = 2*(x+11)

or,3x+ 11 = 2x +22

or,3x-2x= 22–11

or, x=11

Son’s age = 11 years and mom’s age = 33 years

You might be interested in
A new car is purchased for 17900 dollars. The value of the car depreciates at 12.25%
kiruha [24]

Answer:

Therefore the value of the car after 10 year will be = $4,845.34

Step-by-step explanation:

A new car is purchased for $17900. the value of the car depreciates at 12.25% per year.

Since the value of the car depreciates therefore the amount of the car is

A= P(1-\frac{r}{100})^n}

    =17900(1-\frac{12.25}{100})^{10}                [  p = $17900, r = 12.25% and n =10 years]

    = $ 4,845.34

Therefore the value of the car after 10 year will be = $4,845.34

3 0
2 years ago
The diameter of a circle is 9 ft. Find its area to the nearest tenth.
Drupady [299]

Step-by-step explanation:

D=9

A=pie*radius^2

=3.14*9/2*9/2

=63.58

=64

6 0
3 years ago
Read 2 more answers
Find the area bounded by the graphs of the indicated equations over the given interval.
NeX [460]

Answer:

48

Step-by-step explanation:

y = 0

is basically the horizontal axis.

First, find the integral of x^2-25.

Remember that

integral of a constant is that constant times x.

Also that

to take the integral of a power function, add 1 to the degree and divide by that same degree.

y =  {x}^{2}  - 25

We then get

\frac{ {x}^{3} }{3}  - 25x

Evaluate at -3

\frac{ - 3 {}^{3} }{3}  - 25( - 3)

- 27 + 75 = 48

Then we evaluate at 0

\frac{0 {}^{3} }{3}  - 25(0) = 0

Next, we subtract the the answer then we get

48 - 0 = 48

8 0
2 years ago
The sum of mZAOB and mZBOC IS 128º. Find the measure of ZBOC.
amm1812
128 - 33 = 95
Answer C. 95
4 0
2 years ago
Read 2 more answers
Explain the difference between observed frequency and expected frequency as it relates to Chi-Square test.
emmasim [6.3K]

Answer:

Step-by-step explanation:

A Chi-square test is used to test the test of independence between rows and columns, contingency tables. It is a test related to frequencies. The observed frequency is a given statistical frequency known as the actual frequency,  the expected frequency is known as the theoretical frequency is derived from the study by using the sum total of the row and total in the column divided by their corresponding sample size.

5 0
3 years ago
Other questions:
  • Raymond is 2 meters tall and Paul is 6 feet tall. Who is taller?
    12·2 answers
  • How do we test a graph to see if it is a function
    8·1 answer
  • The red graph (1) is the graph of f(x) = log(x). Describe the transformation of the blue function (2) and write the equation of
    11·1 answer
  • NEED HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!
    10·1 answer
  • I WILL MARK BRAINLIEST
    7·1 answer
  • Bill bought a shirt for $35.80 plus he paid an additional 7% in sales tax. What was the sales tax?
    6·2 answers
  • Please help me, choose the right one
    5·2 answers
  • I have nothing to add here lolololol
    8·1 answer
  • 45n=25<br> Simplify your answer as much as possible.
    10·1 answer
  • 5+5+5+5+5+5+5+5+5+5+5
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!