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
Answers
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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Answer:
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Answers
Answer:
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B. The numbers 22% and 17% represents the sample statistics
Step-by-step explanation:
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Answers
1. Start with the equation: \(2(3n+3)-9=6n\).
2. First, distribute the 2 on the left side of the equation:
\(6n + 6 - 9 = 6n\).
3. Next, simplify the equation by combining like terms. The 6n on both sides can be canceled out:
\(6 - 9 = 0\).
4. Simplify further:
\(-3 = 0\).
Now, let's analyze the result:
The equation \(-3 = 0\) is a contradiction. This means that there is no value of \(n\) that will satisfy the equation. In other words, there is no solution to this equation.
Answers
Answer:
negative
Step-by-step explanation:
Suppose we have positive integer x and negative integer -y.
Subtracting x from -y gives:
-y - x
Clearly, if -y is negative and we're subtracting even more (x) from it, the answer will still be negative.
So, the sign is negative.
~ an aesthetics lover
Answer:
negative
Step-by-step explanation:
Suppose we have positive integer x and negative integer -y.
Subtracting x from -y gives:
-y - x
Clearly, if -y is negative and we're subtracting even more (x) from it, the answer will still be negative.
So, the sign is negative.
~ an aesthetics lover
Answers
Answer:
(-6,9,-3)
Step-by-step explanation:
-3x -y +z=6
-3x-y+3z =0
x-3z =3
Multiply the second equation by -1
-1 *(-3x-y+3z) =0*-1
3x +y -3z =0
Add this to the first equation
-3x -y +z=6
3x +y -3z =0
----------------------
0 + 0 + -2z = 6
Divide by -2
-2z/-2 = 6/-2
z = 6/-2
z=-3
Take the third equation to find x
x-3z=3
x-3(-3) = 3
x+9=3
Subtract 9 from each side
x+9-9 =3-9
x=-6
Now we need to find y
3x +y -3z =0
3(-6) +y -3(-3) =0
-18 +y +9=0
-9+y =0
Add 9 to each side
-9+9+y = 0+9
y=9
(-6,9,-3)
Answers
2nd number = y
2x + y = 26
-
x + y = 10
x = 16
26 - (2 x 16) = -6
10 - 16 = -6
Number 1 is 16
Number 2 is -6