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Nuetrik [128]
3 years ago
13

A bar graph is used to represent numerical data. true or false

Mathematics
2 answers:
Arte-miy333 [17]3 years ago
8 0

Answer:

the correct answer is true. easy

igor_vitrenko [27]3 years ago
7 0
A bar graph is used to represent numerical data.true or false correct answer:true
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5 of 8
aleksandr82 [10.1K]

Given:

The mean age of 5 people in a room is 26 years.

A person enters the room. The mean age is now 33.

To find:

The age of the person who entered the room.

Solution:

Formula for mean:

\text{Mean}=\dfrac{\text{Sum of observations}}{\text{Number of observations}}

The mean age of 5 people in a room is 26 years.

26=\dfrac{\text{Sum of ages of 5 people}}{5}

26\times 5=\text{Sum of ages of 5 people}

130=\text{Sum of ages of 5 people}

The mean age is now 33. It means, the mean age of 6 people is 33.

33=\dfrac{\text{Sum of ages of 6 people}}{6}

33\times 6=\text{Sum of ages of 6 people}

198=\text{Sum of ages of 6 people}

Now, the age of the person who entered the room is

Required age = Sum of ages of 6 people - Sum of ages of 5 people

                       = 198-130

                       = 68

Therefore, the age of the person who entered the room is 68 years.

6 0
3 years ago
She pac<br>boxes will she need?<br>arpeners
vivado [14]
She'll have 17 with a remainder, just divide 139 by 8.
4 0
3 years ago
Read 2 more answers
A. Headphone World<br> B. Best Buy<br> C. Target<br> D. Not enough information to tell
choli [55]

Answer:

??? dont under stand

Step-by-step explanation:

4 0
3 years ago
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If you input 0 into the equation below, what is the resulting y-value?<br> y2+x2+3=4
Kobotan [32]
The answer is the 3 option
5 0
2 years ago
Izzie recently took a math test where each correct answer (a) on the main part of the test was worth 8.3 points. She also correc
Temka [501]

Answer:

12 correct answers

Step-by-step explanation:

Since in the main part she scores 8.3 points for each question she answers correctly, we can assume that the number of questions she answers correctly=a

Therefor, the total number of points she achieved in the math test in the main part alone can be expressed as:

Total score(main part)=8.3×a=8.3a points

She also solved a bonus question worth=11 points

Consider expression 1 below

The total score in the whole test=Total score in the main part+Bonus points, where;

Total score in the whole test=110.6 points

Total score in the main part=8.3a points

Bonus points=11 points

Substituting the values in expression 1:

8.3a+11=110.6

8.3a=110.6-11

8.3a/8.3=99.6/8.3

a=12

Number of correct answers in the main part=a=12

4 0
3 years ago
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