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Kipish [7]
2 years ago
15

I will give 70 -0ints

Mathematics
2 answers:
kaheart [24]2 years ago
8 0

Answer:

See below ~

Step-by-step explanation:

<u>(a) Mean of the data</u>

  • 2.4 + 1.6 + 3.2 + 0.3 + 1.5 / 5
  • 9/5
  • <u>1.8</u>

<u></u>

<u>(b) New mean after each data point increased by 10</u>

  • 12.4 + 11.6 + 13.2 + 10.3 + 11.5 / 5
  • 59/5
  • <u>11.8</u>

<u></u>

<u>(c) New mean after each data point doubled [from (b)]</u>

  • 24.8 + 23.2 + 26.4 + 20.6 + 23 / 5
  • 118/5
  • <u>23.6</u>
lord [1]2 years ago
6 0

Answer:

a) 1.8

b) 11.8

c) 23.6

mean: sum of numbers/total numbers

<h3 /><h3>Part A</h3>

⇒ mean: (2.4+1.6+3.2+0.3+1.6)/5 ⇒ 9/5 ⇒  <u>1.8</u>

<h3>Part B</h3>

If all the data's are increased by 10

{12.4, 11.6, 13.2, 10.3, 11.5}

Then mean ⇒ (12.4+11.6+13.2+10.3+11.5)/5 ⇒ <u>11.8</u>

<h3>Part C</h3>

if the new data doubled, the mean will be double

11.8 * 2 = <u>23.6</u>

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In the last election, 72% of the voters
mezya [45]

Answer:

<u>Option A) 19 to 25</u>

Step-by-step explanation:

In the last election, 72% of the voters were in favor of a new outlet mall and

28% were against it.

Vanessa creates random samples of the voters using the numbers 1 to 25.

So, There are 25 numbers to represent all the voters

The range of number that could be used to represent the voters who were against the new outlet mall = 28% of 25 numbers = 0.28 * 25 = 7

So, <u>7 numbers only</u>  could be used to represent the voters who were against the new outlet mall.

Check the options to find which range has only 7 numbers.

A) 19 to 25 ⇒ 7 numbers  

B) 7 to 18    ⇒ 12 numbers

C) 15 to 25 ⇒ 11 numbers

D) 1 to 18    ⇒ 18 numbers

The answer is <u>option A) 19 to 25</u>

6 0
3 years ago
How to solve: (looking for b)<br>y =mx+b
mamaluj [8]
Subtracting mx from both sides, we get y-mx=b
4 0
3 years ago
If Bob produces 36 or fewer items in a week, he is paid X dollars per item. If Bob produces more than 36 items in a week, he is
Greeley [361]

Answer:

How many items did Bob produce last week? 32 items.

Step-by-step explanation:

(1) Last week Bob was paid total of $480 for the items that he produced that week.

(2) This week Bob produced 2 items more than last week and was paid a total of $510 for the items that he produced this week.

a) Let's start with the simplest case:  he produced 36 or less items this week.

In this case he produced less than 36 items last week too.

So he was paid the same amount of dollar per item.

Using (1) and (2) assumptions we have:

$480+2X=$510

⇒2X=$510-$480

⇒2X=$30

⇒2X=$30/2

⇒X=$15

He was paid $15 per item.

Last week he was paid $480.

480/15= 32 items.

This week he was paid $510.

510/15=34 items.

The other cases has no solutions.

7 0
3 years ago
What is the Y value of the point that Partitions the directed line segment A.B. into a 1:3 ratio
xenn [34]

Answer:

y = 5

Step-by-step explanation:

AB = | 8 - (- 4) | = | 12 |= 12

Divide 12 by the sum of the parts of the ratio, 1 + 3 = 4

12 ÷ 4 = 3

Thus

y = 8 - 3 = 5

5 0
3 years ago
!!PLEASE HELP!! CAN GIVE BRAINLIEST!!
lara31 [8.8K]

Answer:

'The closest distance between Earth and Jupiter is greater than the closest distance between Earth and Mercury by approximately 7.66 times'.

Step-by-step explanation:

We are given that,

Distance between Earth and Jupiter = 5.9 × 10⁸ kilometers

Distance between Earth and Mercury = 7.7 × 10⁷ = 0.77 × 10⁸ kilometers

So, we see that,

5.9 × 10⁸ > 0.77 × 10⁸

Also, Ratio = \frac{5.9\times 10^8}{0.77\times 10^8} =7.66

That is,

'The closest distance between Earth and Jupiter is greater than the closest distance between Earth and Mercury by approximately 7.66 times'.

4 0
3 years ago
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