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ValentinkaMS [17]
3 years ago
12

What is the mean of the set of numbers? -11, 22, -2, -3

Mathematics
2 answers:
romanna [79]3 years ago
6 0

add all the numbers and then divide by how many there are in the set to find the mean so

-11+22+-2+-3=6

6÷4=1.5

so 1.5 would be the mean

Hope this helps!

NemiM [27]3 years ago
5 0
In order to find the mean, add up all of the numbers and divide the sum by the amount of the numbers.  So, -11+22+(-2)+(-3)=11-2-3=6.  Now, divide 6 by 4, (the amount of #s).  6/4=3/2 or 1.5.  So 1.5 is the mean of the set of numbers.

Hope this helped!
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I need help for both of these !
VLD [36.1K]
4. \frac{w+3}{2}<-8
First, you can multiply both sides of the inequality by 2 to cancel out the fraction to get:
w+3<-16
Then subtract 3 from both sides to get:
w<-19 
Above is your answer

5. h≤\frac{6h+3}{5} 
Like we did in the first one, multiply by 5 on both sides to get: 
5h≤6h+3
Then subtract 6h from both sides to get
-1h≤3
Divide by -1 into both sides, and when you divide or multiply an inequality by a negative number, you flip the sign, so you would get
h≥-3
Above is your final answer

Hope this helped!
6 0
4 years ago
Ahmed solved x/2 - 3 = 6. His result was x = 15
adelina 88 [10]

Part (a)

Let's replace x with 15 and evaluate to see if he is correct or not.

x/2 - 3 = 6

15/2 - 3 = 6

7.5 - 3 = 6  

4.5 = 6

We get a false statement after simplifying everything. We need to get the same number on both sides to get a true statement. Therefore, Ahmed is not correct.

<h3>Answer: No, he is not correct</h3>

===============================================

Part (b)

Let's solve for x. We do so by first adding 3 to both sides, and then multiplying both sides by 2. This follows PEMDAS in reverse, undoing everything to isolate the variable.

x/2 - 3 = 6

x/2 = 6+3 .... add 3 to both sides

x/2 = 9

x = 9*2 .... multiply both sides by 2

x = 18 is the answer

As a check, we'll use the same idea as part (a)

x/2 - 3 = 6

18/2 - 3 = 6

9 - 3 = 6

6 = 6

We get a true statement this time. This confirms x = 18

<h3>Answer: x = 18</h3>
4 0
3 years ago
Read 2 more answers
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Readme [11.4K]

Answer:

x= -10 1/5 or -10.2

Step-by-step explanation:

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3 years ago
Seven less than the product of a number n and
SVETLANKA909090 [29]

Answer:

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Step-by-step explanation:

We need to write the expression for the given statement.

Seven less than the product of a number n and  1 means (n-7).

It is no more than 95. No more than 95 means less than or equal to i.e.

(n-7) ≤ 95

Hence, the above inequality shows the given statement.

5 0
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8 0
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