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Ugo [173]
3 years ago
9

There are 25 students in Mrs. Venetozzi’s class at the beginning of the school year, and the average number of siblings for each

student is 3. A new student with 8 siblings joins the class in November.The average number of siblings that each student has is
Mathematics
2 answers:
NeTakaya3 years ago
8 0
THE ANSWER IS 83!!!!!!!!!!
leva [86]3 years ago
6 0

Answer:

The new average is  

83

÷

26

=

3

5

26

exactly

83

÷

26

≈

3.192

to 3 decimal places

Explanation:

Assumption: None of the siblings are in that class.

Original numbers

25 students with 3 siblings each gives  

25

×

3

=

75

siblings

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

New numbers

1 new student takes the total students to 25+1 = 26

The new total siblings is  

75

+

8

=

83

The new average is  

83

÷

26

=

3

5

26

exactly

83

÷

26

≈

3.192

to 3 decimal places

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115 + ( -215 ) + 315 + ( -415) + 515 + ... + 3915 + ( -4015 ) =
Likurg_2 [28]
215 because you would add and subtract the numbers as you go them you come out with your answer
5 0
3 years ago
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The isosceles trapezoid is part of an isosceles triangle with a 34 degree vertex angle. What is the measure of an acute base ang
Sonja [21]
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</span>n acute base angle of the trapezoid would be the same as the triangle. 

<span>subtract 34º from 180º, then divide by 2. </span>

<span>(180 - 34)/2 = 73º 
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4 0
3 years ago
What is the Y 2(7y−1)=40
MissTica

Answer:

3

Step-by-step explanation:

2(7y−1)=40

14y-2=40

14y=40+2

14y=42

y=3

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5 0
2 years ago
Read 2 more answers
I’m not sure about this one folks plz help:D
solong [7]

35 is the answer

Explanation, the sum of interrior angme is 180degree

x+(3x+40)= 180

or, 4x= 180-40

or, x= 140÷ 4

or x = 35

8 0
3 years ago
Read 2 more answers
Lines d, e, and f are parallel. That means they have the same slope. Each of these lines has a slope of −3. Enter numbers to com
Sloan [31]

Answer:

Line d : y = -3x - 3

Line e : y = -3x - 2

Line f  : y= -3x + 2

Step-by-step explanation:

Given that,

The slope of each line is -3.

Now,

We know that,

Equation of line is represented by y = mx + c

where m is the slope and c is the y-intercept.

Now,

Given that,

Line d goes through (0, - 3) and (- 1, 0).

So,

y-intercept of Line d is -3

∴ we get

Equation of Line d is : y = -3x -3

Now,

Given that,

Line e goes through (-1, 2) and (0, -2).

So,

y-intercept of Line e is -2

∴ we get

Equation of Line e is : y = -3x - 2

Now,

Given that,

Line f goes through (0, 2) and (1, -1).

So,

y-intercept of Line e is 2

∴ we get

Equation of Line f is : y = -3x + 2

6 0
3 years ago
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