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SOVA2 [1]
3 years ago
8

A problem states: "There are 9 more children than parents in a room. There are 25 people in the room in all. How many children a

re there in the room?" What are the unknowns in this problem? Select each correct answer. 1. the total number of children in the room 2. the total number of parents in the room 3.The total number of teachers in the room 4. the total number of people in the room
Mathematics
1 answer:
Dmitrij [34]3 years ago
6 0
To work out who the unknowns in the room are, we can establish that c = p+ 9
c + p = 25. The unknowns in the room are there the total number of parents in the room, and the total number of teachers in the room.
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D) The perimeter of room is 28 m. and the height is 3.5 m. Find the area of 4 walls.
mote1985 [20]

Answer: 98

Step-by-step explanation:

Area of four walls = Curved surface area

                             = perimeter × height

                              =    28          ×   3.5

                              = 98 m square  

7 0
1 year ago
The perimeter of a regular 4-sided polygon (square) is 48 units and the length of each side is x +1 units. What is the value of
iren [92.7K]

Answer:

x=11

Step-by-step explanation:

48-4=44

44/4=11

x=11

11+1=12

12•4= 48

6 0
2 years ago
Read 2 more answers
I don’t get this you have to do PEMDAS for this
Taya2010 [7]

Answer:

The answer would be 7. By using PEMDAS 6 to the power of 2 equals 36. Then you divide 36 by 3 to get 12. The final step would be to subtract 5 from 12 to get 7. <u>So 7 is your answer</u><u>.</u>

5 0
3 years ago
Use the model to solve for x. A) x = 1 B) x = 3 C) x = 5 D) x =
Novay_Z [31]

Answer:

<h3>            D){?}    x = 7</h3>

Step-by-step explanation:

x + 3•(+1) = 2•x + 4•(-1)

x + 3  =  2x - 4

  -3         -3

 x  =  2x - 7

-2x      -2x

- x  =  -7

÷(-1)     ÷(-1)

  x = 7

7 0
3 years ago
The graph of the function f(x) = –(x + 3)(x – 1) is shown below.
pav-90 [236]

Answer:

The function is negative for all real values of x where

x < –3 and where x > 1.

Step-by-step explanation:

This quadratic function is downward parabola.

It's root are -3 and 1.

Quadratic is positive between -3 and 1.

And negative on R-(-3,1).

4 0
3 years ago
Read 2 more answers
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