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Vesna [10]
3 years ago
9

What is s the mean of this set of data 1,5,8,10,11,4,8,9

Mathematics
2 answers:
Anna [14]3 years ago
4 0
The mean is 7.......
ANTONII [103]3 years ago
3 0
The answer is 7 because if you add them all up you get 56 then you divide it by 8 and you get 7 
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Jamie has 100 milliliters of a 50% isopropyl alcohol solution. How many milliliters of a 96% isopropyl alcohol solution does she
serious [3.7K]

Answer:

318.2 ml

Step-by-step explanation:

Jamie has 100 ml of a 50% isopropyl alcohol solution.

She wants to prepare a solution of 85% by adding 96% solution of isopropyl alcohol solution.

Let the amount of 96% solution required = x ml

Final amount of 85% isopropyl alcohol solution = (100 + x) ml

Therefore, equation for this situation will be,

100 × (50%) + (x) × (96%) = (100 + x) × (85%)

100(0.5) + 0.96x = 0.85(100 + x)

50 + 0.96x = 85 + 0.85x

0.96x - 0.85x = 85 - 50

0.11x = 35

x = \frac{35}{0.11}

x = 318.18 ml

  ≈ 318.2 ml

Therefore, she will require 318.2 ml of 96% isopropyl alcohol solution.

4 0
3 years ago
Six decreased by 9 times a number is -39
Andrew [12]

The translation of the mathematical statement given as six decreased by 9 times a number is -39 is 9x - 6 = -39

<h3>How to translate the mathematical statement?</h3>

The mathematical statement is given as:

six decreased by 9 times a number is -39

9 times a number means

9 * x (assume x is the number)

So, we have:

six decreased by 9 times a number is -39 ⇒ six decreased by 9x is -39

Decreased by means we subtract 6 from 9x.

So, we have:

six decreased by 9 times a number is -39 ⇒ 9x - 6 = -39

Hence, the translation of the mathematical statement given as six decreased by 9 times a number is -39 is 9x - 6 = -39

Read more about mathematical statement at

brainly.com/question/4541471

#SPJ1

5 0
1 year ago
What is the solution to 3x2 + 4x - 8 = 0?
Ber [7]

Answer:

The answer is c

Step-by-step explanation:

3 0
3 years ago
Please help solve this!
algol13

Answer:

There’s nothing to solve?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I really need help with this algebra problem:<br> 5a=89
stiks02 [169]
Divide 5 by 89 and you get a=17.8
4 0
3 years ago
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