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
9

2/9 of the students in a school are in sixth grade.

Mathematics
2 answers:
IRISSAK [1]3 years ago
5 0

There are 20 students in sixth grade

Step-by-step explanation:

  • Step 1: Find the number of sixth-graders in the school.

Total number of students = 90

Number of sixth-graders = 2/9 of total students

⇒ Number of 6th graders = 2/9 × 90 = 20 students

Alekssandra [29.7K]3 years ago
4 0

Answer:

20

Step-by-step explanation:

You might be interested in
The sum of a rational number and an irrational number produces an irrational number.
sashaice [31]

Answer:

True

Step-by-step explanation:

Example: sqrt(5) (which decimals continue forever) will mean that if you did 5+sqrt(5) it would still have those decimals.

6 0
2 years ago
Read 2 more answers
Im not sure where to start with this one...<br>​
Nina [5.8K]
The volume of a cube is side length cubed (s^3)
So if you know the volume then take the cube root of 1/512... which is 1/8

So each side of the cube is 1/8.

There are 6 congruent sides on a cube (picture a “dice”). Do the area of each side would be (1/8)(1/8)= 1/64 then multiply that area by 6 and reduce ... you get 6/64 = 3/32 for the surface area
3 0
3 years ago
What two numbers multipled get -48 and when added get 8?
Katarina [22]
X * y = -48
x + y = 8

y = -48/x

x -48/x = 8
x^2 - 48 = 8x
x^2 - 8x -48 = 0
x = 12
y = -4

5 0
3 years ago
before tomorrow can I have a quick answer and maybe an explanation on how to answer these kinds of questions overall? need some
MA_775_DIABLO [31]

Answer:

  a) maximum; the parabola opens downward

  b) positive; it must lie above the x-axis

  c) x = 1.5

Step-by-step explanation:

The x-intercepts of a function are the points where the graph of the function crosses the x-axis. The y-values there are zero.

The "differences" of a function are related to the average slope between adjacent points. Second differences are related to the rate of change of the slope of the function. When <em>second differences are negative</em>, as here, the slope of the quadratic function is decreasing, becoming more negative. We say the <em>curvature</em> of the function is <em>negatve</em>, and that it <em>opens downward</em>.

__

<h3>a, b.</h3>

If the graph of the parabola opens downward, and it crosses the x-axis, it must have a <em>maximum</em> that is a <em>positive value of y</em>.

__

<h3>c.</h3>

The graph of a parabola is symmetrical about its vertex. That means points on the same horizontal line are the same distance from the line of symmetry, which must go through the vertex. The x-coordinate of the vertex will be the x-coordinate of the midpoint between the two x-intercepts:

  x = (-2 +5)/2 = 3/2

The x-coordinate of the vertex is x = 1.5.

______

<em>Additional comment</em>

The attachment shows a table with three evenly-spaced points on the curve. The calculations show first differences (d1) and second differences (d2). You can see that the sign of the second diffference is negative, in agreement with the given conditions.

3 0
2 years ago
The temperature in the production department is 21° C at 12 noon. If
Scrat [10]
28.5 degrees celsius
7 0
2 years ago
Other questions:
  • How do I work out 2/3 of 2
    9·1 answer
  • I need help with #10 &amp; #12
    8·1 answer
  • Can u answer this pls
    10·1 answer
  • -14+7-9r+13r someone please helpp !
    9·2 answers
  • Compute the value of the discriminant and give the number of real solutions of the quadratic equation. 4x^2-7x+2=0
    5·1 answer
  • The value of -31.45/-3.21 is around?
    6·1 answer
  • If the sum of x and y is 90 and y is 6 more than four times x, which of the following systems of equations could be used to solv
    13·1 answer
  • I NEED HELP ASAPPPP!!!!!!!!!!!!!!
    15·1 answer
  • Pls answer these questions
    6·2 answers
  • Q6. The diagram shows that a ship sails 34 nautical miles from its port. Then after sailing 19 nautical miles due east, it is di
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!