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kirza4 [7]
3 years ago
14

A school has 18 classes with 35 students in each class. In order to reduce class size to 30,how many new classes have to be form

ed?
Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
5 0
1 class with 5 student
iragen [17]3 years ago
5 0
35 students × 18 classes = 630 total students
630 total students ÷ 30 (new class size) = 21

therefore, it requires 21 new classes to reduce the class size to 30.

Please give me the Brainliest!

Follow my account. (:
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14 5 18 24 15 28 34 _ what number is needed to complete the pattern
AlekseyPX
Minus 9, add 13, add 6, mus 9, add 13, add 6, minus 9 is next

34-9=25
the blank is 25
4 0
3 years ago
If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 1 on the white die? A 1 on the wh
Allisa [31]

Answer:

6

Step-by-step explanation:

Sample space of the experiment

first number in the bracket is white die and second number in the bracket is black

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)

(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)

(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)

(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)

As it can be seen that the first numbers in the bracket are (1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

∴1 on the white die can be obtained in 6 ways

7 0
3 years ago
Evaluate the following expression when x = -1, y = 2, z = -3, and<br> w = 4.<br> x² - y²
vaieri [72.5K]

Answer:

-3

Step-by-step explanation:

-1*-1=1

2*2=4

1-4

=-3

7 0
3 years ago
Cindy has 2 boxes of pencils. Patrice has 5 boxes of pencils. Each box has the same number of pencils in it.
Murljashka [212]

Answer:

hey mate..

plzz add more to ur question soo that we can answer it...!

;)



8 0
3 years ago
A wholesaler requires a minimum of 4 items in each order from its retail customers. The manager of one retail store is consideri
Nataliya [291]

Answer:

  • It is the last graph: solid line, shaded area over the line x = 2 - x/2

Explanation:

1) <u>Set the algebraigic expression that represents the combinations of sofa and pillow orders:</u>

  • Number of sofas: x (given)
  • Number of pillows: 2y (given, since they come in pairs)
  • Number of items = number of sofas + number of pillows = x + 2y
  • Minimum of 4 items in each order (given) ⇒ x + 2y ≥ 4

<u>2) Predict the graph of the inequality x + 2y ≥ 4</u>

  • The border line is the equation x + 2y = 4
  • You can choose two points to draw a line
  • Choose the axis-intercepst:

        x = 0 ⇒ 2y = 4 ⇒ y =4/2 ⇒ y = 2 ⇒ point (0,2)

        y = 0 ⇒ x = 4 ⇒ point (4,0)

        Then the lines goes through (0,2) and (4,0) ... [the four graphs meet this]

  • The shading area is above the line because when you solve for y you get y ≥   2 - x/2, and the line is included because the "equal to" part of the symbol (≥ means greater than or equal to).

  •  To state that the line is included the graph uses a continous line instead of a dotted one.

<u>3) Conclusion:</u>

That means that the correct graph is the last one: solid line, shaded area over the line y = 2 - x/2.

Note: a more detailed graph would include the fact that the items cannot be negative, i.e. x ≥ 0 and y ≥ 0, which would result in that the shaded area would be on the first quadrant.

   

5 0
3 years ago
Read 2 more answers
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