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Airida [17]
3 years ago
9

Help !!!!!! Need to know ASAP

Mathematics
1 answer:
madreJ [45]3 years ago
5 0

Answer:

Multiply by 5

5*2f-5*6g=10f-30g

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Answer:

16 feet, 18 feet, and 25 feet.

Step-by-step explanation:

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An exercise class had 20 people. If each person produced 2,200 BTUs of body heat during the class and the room is 30 ft × 40 ft
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We are given the average body heat  equal to 2200 BTU. In this problem, we are asked to determine the total body heat  in BTU per cubic foot given the dimensions of the room. The volume of the room is 18000 ft3. we multiply the average heat by 20 persons.hence the answer to this problem is 2.44 BTU/ft3. 
8 0
3 years ago
The front row in a movie theater has 23 seats. If you were asked to sit in the seat that occupied the median position, in which
Scorpion4ik [409]

Answer:

You would have to sit in the 12th seat. (12)

Step-by-step explanation:

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3 0
3 years ago
In a competition, a school awarded medals in different categiories.40 medals in sport 25 medals in danceand 212 medals in music,
aleksley [76]

Answer:

210

Step-by-step explanation:

Given:

Medals in sports = 40

Medals in dance = 25

Medals in music = 212

Total students that received medals = 55

Total students that received medals in all three categories = 6

Required:

How many students get medals in exactly two of these categories?

Take the following:

A = set of persons who got medals in sports.

B = set of persons who got medals in dance

C = set of persons who got medals in music.

Therefore,

n(A) = 40

n(B) = 25

n(C) = 212

n(A∪B∪C)= 55

n(A∩B∩C)= 6

To find how many students get medals in exactly two of these categories, we have:

n(A∩B) + n(B∩C) + n(A∩C) −3*n(A∩B∩C)

=n(A∩B) + n(B∩C) + n(A∩C) −3*6 ……............... (1)

n(A∪B∪C)=n(A)+n(B)+n(C)−n(A∩B)−n(B∩C)−n(A∩C)+n(A∩B∩C)

Thus, n(A∩B)+n(B∩C)+n(A∩C)=n(A)+n(B)+n(C)+n(A∩B∩C)−n(A∪B∪C)

Using equation 1:

=n(A)+n(B)+n(C)+n(A∩B∩C)−n(A∪B∪C)−18

Substitute values in the equation:

= 40 + 25 + 212 + 6 − 55 − 18

= 283 - 73

= 210

Number of students that get medals in exactly two of these categories are 210

6 0
4 years ago
Can you help me plz i need this ASAP please
astra-53 [7]

look you see that im in 5 grade in I dont konw this stuff do the anser mite be 3577643577

7 0
3 years ago
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