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bekas [8.4K]
3 years ago
14

URGENT

Mathematics
2 answers:
matrenka [14]3 years ago
7 0
The mean is the average. You calculate it by adding all the numbers up in the data set and divide by how many numbers there are in the data set.

So:

\sf Mean=\dfrac{70+68+72+66+68+69+66+71+74+66}{10}\rightarrow\dfrac{690}{10}\rightarrow\boxed{\sf 69}
Sedaia [141]3 years ago
4 0

Answer:

The answer is 69. Hope this helps.

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Divide these fractions<br> 2/3 = 3/4
Svetradugi [14.3K]

Answer:

8/9

Step-by-step explanation:

I'm pretty sure after you make it a reciprocal you multiply it

7 0
3 years ago
Which of the following graph represents the solution set for 5x+38 ≤ 4(2-5x)
Dvinal [7]

Answer:

Option C

Step-by-step explanation:

Given inequality is,

5x + 38 ≤ 4(2 - 5x)

5x + 38 ≤ 8 - 20x [Distributive property]

5x + 20x + 38 ≤ 8 - 20x + 20x [By adding 20x on both the sides of the inequality]

25x + 38 ≤ 8

(25x + 38) - 38 ≤ 8 - 38 [By subtracting 38 on both the sides of the inequality]

25x ≤ -30

\frac{25x}{25}\leq -\frac{30}{25} [Dividing by 25 on both the sides of the inequality]

x ≤ 1.2

Therefore, Option (C) will be the correct graph.

7 0
3 years ago
James is playing his favorite game at the arcade. After playing the game 3 times, he has 8 tokens remaining. He initially had 20
LiRa [457]

Answer:It costed him 4 tokens to play it each time.

Step-by-step explanation:

20-8=12 12/3 because he played it three times=4

7 0
3 years ago
100 points Hannah factored the expression 24xy + 15y. Her work is shown below.
sleet_krkn [62]

1. She divided by 3 instead of the GCF.

4. She didn’t complete step 4 and use the distributive property to be sure the expressions are equivalent.

5. She didn’t undistribute the GCF from the original expression.

8 0
3 years ago
Read 2 more answers
Simplify the following expression.<br><br>38 - |-2 + 7|<br><br>​
xenn [34]

Answer:

33

Step-by-step explanation:

38-|-2+7|  add -2 and 7

38-|5| the absolute value of 5 is 5

38-5 subtract 38 and 5

33

5 0
4 years ago
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