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
The graph shows the solution to the previous system of equations.
patriot [66]

Answer:

Shade above 2x + y = 4.

Shade below 2x + y = 4.

Shade above 2y = 6 – 2x.

Shade below 2y = 6 – 2x.

Make the boundary line 2x + y = 4 dashed.

Step-by-step explanation:

8 0
3 years ago
The fourth term of an Arithmetic Sequence is equal to 3 times the first term, and the seventh term exceeds twice the third term
11Alexandr11 [23.1K]

Answer:

The first term is 3. The common difference is 2.

Step-by-step explanation:

The first term is x.

The common difference is d.

The second term is x + d.

3rd term: x + 2d

4th term: x + 3d

7th term: x + 6d

"The fourth term of an Arithmetic Sequence is equal to 3 times the first term"

x + 3d = 3 * x       Eq. 1

"the seventh term exceeds twice the third term by 1"

x + 6d = 2(x + 2d) + 1       Eq. 2

Simplify Eq. 1:

2x = 3d

Simplify Eq. 2:

x + 6d = 2x + 4d + 1

x = 2d - 1

Multiply both sides of the last equation by 2.

2x = 4d - 2

2x = 3d   (simplified Eq. 1)

Since 2x = 2x, then the right sides are equal.

3d = 4d - 2

d = 2

2x = 3d

2x = 3(2)

2x = 6

x = 3

Answer: The first term is 3. The common difference is 2.

8 0
3 years ago
Hi there! Can someone help me with this, i need a proper answer, i don't need LINKS or FILES for the explanations.
alexira [117]

Answer:

<u>Using below system of inequalities</u>

  • y > 2x - 3
  • y < x + 1

<u>Following the rules </u>

  • 1. Finding x- and y - intercepts
  • 2. Connecting with dotted line for each as no equal symbol present in any inequality
  • 3. Shade respective regions
  • 4. Solution is the intersection of the shades regions
  • 5. Select any three points in the solution region

<u>Line 1</u>

  • y > 2x - 3
  • x- intercept: y = 0 ⇒ 0 = 2x - 3 ⇒ 2x = 3 ⇒ x = 1.5
  • y - intercept: x = 0 ⇒ y = -3
  • Shaded region is above the line (or to the left)

<u>Line 2</u>

  • y < x + 1
  • x- intercept: y = 0 ⇒ 0 = x + 1 ⇒ x = -1
  • y - intercept: x = 0 ⇒ y = 1
  • Shaded region is below the line (or to the right)

<u>Selected points are:</u>

  • (-1, -1), (1, 1), (2, 2)

4 0
3 years ago
Please help me its hard!
asambeis [7]

Answer:

1200

Step-by-step explanation:

Find the width and the height show in the picture then use the formula Area = length X height

The width is 40 and the height is 30. Therefore Multiply it together and get 1200

It may not be the answer!

7 0
3 years ago
Read 2 more answers
What is the slope of the line that contains the points (-2, 7) and (2, 3)?
AleksAgata [21]

Answer:

-1

Step-by-step explanation:

We can use the slope formula to find the slope

m = ( y2-y1)/(x2-x1)

    = ( 3-7)/(2- -2)

   = (3-7)/(2+2)

    = -4/4

   = -1

6 0
3 years ago
Read 2 more answers
Other questions:
  • A soccer ball has an interior diameter of 22 cm. How many cubic centimeters of air does a soccer ball
    15·1 answer
  • Explain the difference between the two inequalities. how does this affect your method of solution?
    7·1 answer
  • A Sum of $14 is made of 92 coins consisting of dimes and quarters. How Many are there of each kind of coin
    6·2 answers
  • Determine the asymptotes of the function graphed below.
    8·1 answer
  • 7) Place the following numbers in order form least to
    5·1 answer
  • Math Help!!
    6·1 answer
  • Stuck, anyone can help?
    9·1 answer
  • Item 6
    5·1 answer
  • Assume y=5x and dx/dt = 2 find dy/dt
    9·1 answer
  • -7,5 + 4,2 =?<br><br><br> -0,9 * 2,7 =?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!