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
OverLord2011 [107]
2 years ago
10

Class A has 20 pupils and class B has 19 pupils.

Mathematics
1 answer:
skelet666 [1.2K]2 years ago
4 0

Answer:

Hi! I got 47.5

Step-by-step explanation:

33+62=95

95/2=47.5

You might be interested in
How much fencing does Farmer Gump need?
Agata [3.3K]

For the first field, he will need 40 m for the fence, this will cost £640 and he can have 10 sheep. For the second field, he will need 60 m for the fence, this will cost  £960 and he can have 12 sheep.

<h3>What does this problem require?</h3>

This problem requires you to calculate the perimeter and area of each field and based on this information you can find the total of the fence the farmer requires, the cost, and the number of sheep.

<h3>How to calculate the perimeter?</h3>

You can calculate the perimeter by adding all the sides.

  • Field 1: 10m + 10m + 10m + 10m = 40 m
  • Field 2: 25m + 5m + 25m + 5m = 60 m

<h3>How to calculate the area?</h3>

To calculate the area, multiply the height by the width.

  • Field 1: 10 x 10 = 100m2
  • Field 2: 25 x 5 = 125m2

<h3>How much fencing does the farmer need?</h3>

The fencing needed is equal to the perimeter.

  • Field 1: 40 m of fencing
  • Field 2: 60 m of fencing

<h3>How much will it cost?</h3>

Multiply the number of meters needed by the price per meter ( £16 per meter).

  • Field 1: 40m x  £16 per meter = £640
  • Field 2: 60 m x £16 per meter = £960

<h3>How many sheep can there be in each field?</h3>

To calculate this divide the area into the space required by each sheep (10m2).

  • Field 1: 100m2 / 10m2 = 10 sheep
  • Field 2: 125m2 /10m2 = 12 sheep

Note: This question is incomplete; here is the missing information:

Farmer Gump has two problems. His first problem is to work out how much fencing he needs to buy for his fields so his sheep don’t escape. His second problem is to work out how many sheep each field can hold—each sheep needs a minimum of 10m² of grass!

Sheep cost £65 each.

The fence is £16 per meter.

Learn more about perimeter in: brainly.com/question/6465134

4 0
3 years ago
Determine the area of the shape above. The formula for the area of a polygon is: Area = 1/2 (a n s) *
Liula [17]

Step-by-step explanation:

Area of a regular polygon is half the apothem times the perimeter, or A = ½ a n s, where a is the apothem, n is the number of sides, and s is the side length.

A = ½ (8.5705 in) (8) (7.1 in)

A = 243.4022 in²

6 0
3 years ago
Selina claims single having one exemption.
zlopas [31]

Remark

Whatever the table shows is probably the Federal tax. It shows that with one exemption and a biweekly pay of 850 means that 80 is deducted.

The amount of state tax is 21% of the federal fax.

State Tax = 80 * 21/100 = $16.80  Answer

8 0
4 years ago
What is the axis of symmetry of the function f(x) = -(x+9)(x-21)
LUCKY_DIMON [66]

Answer:

x = 6

Step-by-step explanation:

Take  f(x) = -(x+9)(x-21)  and multiply it out.  We get:

          f(x) = -[x^2 + 9x - 21x - 189], or

          f(x) = -x^2 + 12x + 189

This is a quadratic equation.  The coefficients are a = -1, b = 12 and c = 189.

The equation of the axis of symmetry is x = -b/(2a), which here equals:

x  =  -12 / [2*(-1)], or x = 6.

3 0
3 years ago
Which of the following is not a function?
rusak2 [61]
Answer: B

Number on the left: x-value
Number on the right: y-value

If there are 2 y-values for one x-value it is NOT considered a function.

For instance in the answer:

(2,3), (2,4), (3,3), (3,4)

You can clearly see that the x-values (2 & 3) repeat more than once; therefore, it is NOT a function.

On the other hand if you have 2 DIFFERENT x-values for the same y-value it IS A FUNCTION.

For ex D: (2,4), (3,4), (5,4), (6,4)

As you can see there are 4 DIFFERENT x-values with same y-value; therefore it is A FUNCTION

To make it easier:

If x-values appear more than once = NOT A FUNCTION

If x-values appear only ONCE = FUNCTION

Remember: y-values are ALLOWED to repeat

I hope this helps. If you have any questions please let me know in the comments.
4 0
3 years ago
Other questions:
  • How many triangles can fit on a square?
    7·2 answers
  • 4) BRAINLIEST + 15 + POINTS :)
    6·1 answer
  • How do I find out what is the end behavior diagram for πx^7-x^5-5x+6
    12·1 answer
  • A parabola has a vertex at the origin. The equation of the directrix of the parabola is y = 3.
    10·2 answers
  • What is 3/18 written in its simplest form? Explain your answer.
    14·2 answers
  • I need y’all help plz
    11·1 answer
  • Halp me: ´` ) please : ´` &gt; i need halp please : ^ l
    6·2 answers
  • Graph the system of inequalities. Which two quadrants does the solution lie in?
    10·2 answers
  • Work out the mean for the data set below:<br> 4.7, 4.2, 8.2, 9.5, 3.1
    6·2 answers
  • Please help quick!! i’ll give brainliest!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!