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
STatiana [176]
3 years ago
6

The arithmetic mean of ten boys is 8 years, 6 months one of them is 13 years old. Then the arithmetic mean of remaining 9 boys i

s
a)9.5 b) 9 c) 8 d) 7
Mathematics
1 answer:
FrozenT [24]3 years ago
3 0
<span>The arithmetic mean of ten boys is 8 years, 6 months = 8.5 years
total age = 10* 8.5 = 85 years

one of them is 13 years
total age of rest = 85 - 13 = 72 years
mean of rest = 72/9 = 8 years

Answer is C) 8 years
</span>
You might be interested in
What is the surface area of the cube below?
Elden [556K]

Answer:

150 units^2

Step-by-step explanation:

A cube has all equal sides. This one has five units for every side.

There are 6 faces here, and 4 vertices for every face.

The equation would look like this 6 x side^2.

Which would also equal to 6 x 5^2.

If you do this, you will find that the answer is 150 units^2.

7 0
3 years ago
The volume of a Cylinder is given by the formula v=pir2h, where are is the radius of the cylinder and H is the height. Suppose a
faust18 [17]

You just need to plug those expressions inside the formula: it doesn't matter if they're expressions involving a variable instead of plain numbers: the formula becomes


V = \pi (x+8)^2(2x+3)


If you want, you can simplify it by expanding the square and then multiply the two parenthesis:


V = \pi (x^2+16x+64)(2x+3) = \pi (2 x^3 + 35 x^2 + 176 x + 192)

6 0
3 years ago
- vnuәуре отти аропс
Daniel [21]

equation in slope-intercept form is:

y=9x+7

Step-by-step explanation:

The general form of slope-intercept form is:

y=mx+b

where m is the slope and b is the y-intercept

In the question we are given slope m=9 and a point(0,7)

We will find b i.e y-intercept

y=mx+b\\7=9(0)+b\\7=0+b\\b=7

So, value of b=7 and value of slope m=9

So, equation in slope-intercept form is:

y=9x+7

Keywords: slope-intercept form

Learn more about slope-intercept form at:

  • brainly.com/question/12954015
  • brainly.com/question/1979240
  • brainly.com/question/2601054

#learnwithBrainly

8 0
3 years ago
We want to find the zeros of this polynomial:
fredd [130]

Answer:

x = -3 and x = -3/2

Step-by-step explanation:

After writing down the polynomial, split it; put a line between 3x^2 and -18x. Look and 2x^3 + 3x^2 and -18x - 27 separately and factor them both:

p(x) = 2x^3 + 3x^2 <u>- 18x -27</u>

p(x) = x^2(2x+3) <u>-9(2x+3)</u>

Now notice how x^2 and -9 have the same factor (2x+3). That means x^2 and -9 can go together:

p(x) = (x^2 - 9)(2x+3)

Factor it once more because there's a difference of squares:

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

Now just plug in whatever makes the each bracket equal 0:

x = -3, x = 3, and x = -3/2

Those are your zeros.

8 0
2 years ago
Marie is bringing bagels and cream cheese to school as a birthday snack for her class. The cost of b bagels and c packages of cr
Liono4ka [1.6K]

Answer:

I don’t know this I just need points

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • (1 point) Let f(x,y)=xex2−yf(x,y)=xex2−y and P=(6,36)P=(6,36). (a) Calculate ∥∇fP∥‖∇fP‖. (b) Find the rate of change of ff in th
    11·1 answer
  • What is the constant of proportionality in the equation 6y=3x6y=3x6, y, equals, 3, x?
    8·1 answer
  • Who is the best rapper to come out of chicago?
    9·2 answers
  • Multiply -c^2(3c-2) apply distributive property and multiply
    6·1 answer
  • Somebody answer this!!! pls!!!
    12·2 answers
  • У<br> (6, 10),<br> (а, 8)<br> (4, b)<br> (2, 2)<br> Х
    12·1 answer
  • Find the area of a circle with radius, r = 7.49m. Give your answer rounded to 2 DP.
    13·1 answer
  • Help plz:))) I’ll mark you BRAINLIEST
    10·1 answer
  • Multiple choice about how many seconds the ball is in the air
    7·1 answer
  • YES OR NO<br><br> PLEASE HELP MEE THANK YOUUU
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!