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
Effectus [21]
3 years ago
14

If a classroom has 7 students with black hair and there are 24 students in the

Mathematics
1 answer:
telo118 [61]3 years ago
3 0

Answer:

  29.2%

Step-by-step explanation:

The fraction of students with black hair is 7/24. To convert that to a percentage, multiply by 100%.

 7/24×100% = 29.1666(repeating)% ≈ 29.2%

You might be interested in
Lines AC←→ and DB←→ intersect at point W. Also, m∠DWC=138° .
mr_godi [17]

m∠DWC=138°, ∠AWB = 138°, ∠AWD = 42°, ∠BWC = 42°

Solution:

Line \overrightarrow{A C} \text { and } \overrightarrow{B D} intersect at a point W.

Given m \angle D W C=138^{\circ}.

<em>Vertical angle theorem:</em>

<em>If two lines intersect at a point then vertically opposite angles are congruent.</em>

<u>To find the measure of all the angles:</u>

∠AWB and ∠DWC are vertically opposite angles.

Therefore, ∠AWB = ∠DWC

⇒ ∠AWB = 138°

Sum of all the angles in a straight line = 180°

⇒ ∠AWD + ∠DWC = 180°

⇒ ∠AWD + 138° = 180°

⇒ ∠AWD = 180° – 138°

⇒ ∠AWD = 42°

Since ∠AWD and ∠BWC are vertically opposite angles.

Therefore, ∠AWD = ∠BWC

⇒ ∠BWC = 42°

Hence the measure of the angles are

m∠DWC=138°, ∠AWB = 138°, ∠AWD = 42°, ∠BWC = 42°.

7 0
3 years ago
Find the variable of x. <br> 8x-2=-9+7x
TiliK225 [7]

Answer:

8x-2=-9+7x equals X=-7

7 0
3 years ago
Read 2 more answers
[Pic] What is the slope of this line?
quester [9]
The slope is 2/1
to get slope you do rise over run
7 0
3 years ago
Marco is making a kite, using sticks for its diagonals. One stick is 2 feet long and the other is 3 feet long. How much material
Marat540 [252]

Answer:

Marco will need 3\ ft^{2} of material to make the kite

Step-by-step explanation:

we know that

To know how much material Marco will need to make the kite, the area must be calculated.

Remember that the area of the kite is equal to

A=\frac{1}{2}[d1*d2]

where

d1 and d2 are the diagonals of the kite

we have

d1=2\ ft

d2=3\ ft

substitute

A=\frac{1}{2}[2*3]=3\ ft^{2}

3 0
3 years ago
Read 2 more answers
Hello can you please help me posted picture of question
irina [24]
We are to form the combination of 6 objects taken 2 at a time. This can be expressed as 6C2

6C2= \frac{6!}{2!*4!} \\  \\ &#10;= \frac{6*5}{2} \\  \\ &#10;=15

This means, there can be 15 different combinations of 2 members that can sit in the front row.

So, the answer to this question is option A
6 0
3 years ago
Read 2 more answers
Other questions:
  • Use the change of Base formula to evaluate log5 92 . then convert. Log5 92 to a logarithm in base 3. Round to the nearest thousa
    11·2 answers
  • 120% of 120 is what number?
    11·2 answers
  • What is the equation of the line that passes through the points (2, 0) and (2, -4)?
    5·1 answer
  • Which is greater 5/6 or 5/12
    6·2 answers
  • A theme park had 1099 visitors in 3 days.There were twice as many visitors on saturday than on Friday.There were 234 more visito
    5·1 answer
  • Write an equation that describes the pattern shown in the table
    13·1 answer
  • Whats the answer for the whole problem please help i give brainliest.
    14·1 answer
  • Hi! Need help rly quick ☺️, will mark brainilest!!
    14·1 answer
  • You are tossing an apple. After t seconds, the height of the apple in feet is given by h = -16t2 + 38.4t + 0.96. What is the dom
    12·1 answer
  • I need help on this problem please
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!