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
adell [148]
3 years ago
6

Add the following:

Mathematics
1 answer:
PIT_PIT [208]3 years ago
8 0

Step-by-step explanation:

1) 7/23 + 11/23 + 9/23

7+11+9/23

27/23

= 1 4/23

2) 2 5/7 + 9 4/7

11 9/7

= 11.12

3) 9/20 + 3/5

9+12/20

21/20

= 1 1/20 or 1.05

You might be interested in
In the diagram, GB = 2x + 3..
zaharov [31]

<u>Answer-</u>

\boxed{\boxed{GB=15\ units}}

<u>Solution-</u>

From the attachment,

AD = AE, so FA is a median.

BD = BF, so BE is a median.

CF = CE, so DC is a median.

And G is the centroid.

From the properties of centroid, we know that

The centroid divides each median in a ratio of 2:1

So,

\Rightarrow FG:AG=2:1

\Rightarrow \dfrac{FG}{AG}=\dfrac{2}{1}

\Rightarrow FG=2\times AG

\Rightarrow 5x=2\times (x+9)

\Rightarrow 5x=2x+18

\Rightarrow 3x=18

\Rightarrow x=6

So, GB will be 2(6)+3=15 units

5 0
3 years ago
Read 2 more answers
ASAP What is the lateral area of this regular octagonal pyramid?? Explain your answer if you can plz thanks
Archy [21]
The lateral area would be 298.7 cm².

The lateral area is the area of all of the lateral faces of the pyramid.  There are 8 triangles making up the lateral faces.  Each has a base of 6.6.  The formula for the area of a triangle is

A=1/2bh,

so we still need the height of the triangle.

The height of each lateral triangle is the slant height of the pyramid.  The slant height of the pyramid forms a right triangle with the height of the pyramid and the "radius" as it were of the pyramid.  Thus we use the Pythagorean theorem:

8²+8²=h²
64+64=h²
128=h²
√128=√(h²)
8√2 = h

Substituting this into our area formula we have:
A=1/2(6.6)(8√2)

We will go ahead and multiply this by 8, since there are 8 lateral faces:
LA=8(1/2)(6.6)(8√2)
LA = 298.7
3 0
3 years ago
Read 2 more answers
Khan Academy math question. Just answer the picture
MrRissso [65]
Answer is 175
To start you need to work backwards from the mean so do 158*4 to give you the total of the revenue then simply minus what was given to get 175
Hope this helped
4 0
3 years ago
In 8th grade, there are 240 students. What percent are girls if 102 are girls?<br><br> (PLEASE HELP)
Scrat [10]
42.5% you would divide 102 by 240
6 0
3 years ago
Read 2 more answers
there is a total of 10 pages of homework. sophia worked on some pages on monday if she has 3 pages left how many pages did sophi
Oxana [17]

Answer:

7

Step-by-step explanation:

Since, Sophia had three pages of homework and she only has three left you can set up an equation to solve. The equation would be 10=x-3, then you just solve the equation which would be 7, hope that helped.

3 0
2 years ago
Other questions:
  • The density of aluminum is 2.7 g cm3 what is its density in kilograms per cubic meter
    14·1 answer
  • Can u help me with the whole page
    9·1 answer
  • For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 20 N acts on
    13·1 answer
  • The graph represents the heights of two climbers on a climbing wall over a 12-minute time period.
    11·2 answers
  • What is the value of this function evaluated at f(-3)? f(x)= 2x^2+5x-9
    5·1 answer
  • Simply this expression. Which like terms can she combine 12-4x+3
    10·1 answer
  • PLZ NEED HELP Reduce this algebraic fraction.y^3-3y^2+y-3/y^2-9
    10·1 answer
  • What is the median for the following set of numbers? 5, 7, 12, 15, 21, 21, 22, 22
    7·1 answer
  • I need some help, would anyone know? <br><br> thank you
    11·1 answer
  • Question 14 of 25
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!