(x + 1)2 = 25 Answer ?!

Mathematics

2 answers:

Ilia_Sergeevich [38]2 years ago

7 0

Answer:

x = 12

Step-by-step explanation:

emmasim [6.3K]2 years ago

7 0

Answer:

23/2

Step-by-step explanation:

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Carmen's city took a telephone poll about a plan to build a new hotel downtown. 6,000 people took the poll. 25% of them were in

Nimfa-mama [501]

People were in favor of the new hotel=25% of 6000 people.
25% of 6000 people=(25/100)*6000=(25*6000)/100=1500 pople.

1500 people were in favor of the new hotel.

4 0

2 years ago

The following are the ages (years) of 5 people in a room:

slava [35]

Answer:

The age of the person who entered the room is 15

Step-by-step explanation:

We are given:

Ages of 5 people in a room are:

17, 16, 15, 17, 22

A person enters room, and then the mean age of 6 people is 17.

We need to find the age of person who entered the room.

The formula to calculate mean is: $Mean=\frac{Sum\:of\:all\:data\:values}{Number\:of\:data\:Values}$

Now, in question we are given mean of 6 people that is 17

The age of 5 people are given while age of one person who enters the room is unknown.

Let age of person whose age is unknown= x

Now finding x using mean formula

$Mean=\frac{Sum\:of\:all\:data\:values}{Number\:of\:data\:Values}\\17=\frac{17+16+ 15+ 17+ 22+x}{6}\\17=\frac{87+x}{6}\\17*6=87+x\\102=87+x\\x=102-87\\x=15$