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IRISSAK [1]
3 years ago
13

Can someone explain how to due this

Mathematics
1 answer:
ElenaW [278]3 years ago
7 0
It’s just 5 you divide 9 into 45 and get a whole number of 5
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The Knowles/Armitage (KA) group at Merrill Lynch advises clients on how to create a diversified investment portfolio. One of the
Pani-rosa [81]

Answer:

See the attached file for the answers.

Step-by-step explanation:

See the attached file for the explanation

4 0
3 years ago
Read 2 more answers
8 Leandra's fastest time for the 400 m is 70 seconds. In his next race he improves by
disa [49]

8) a) The new fastest time is 56.7 seconds, b) The <em>overall percentage</em> improvement is 19 %.

9) The height after the first increase is 1.375 meters and after the second increase is 1.54 meters.

<h3>How to apply percentages in real life applications</h3>

In this problem we have two examples from real life, in which percentages are used. The first is the distance traveled by a runner in a given time and the second is the growth of a person in time. Change in variables based on percentages are described by the following formula:

C' = C · (1 + r / 100)     (1)

Where:

  • C - Initial value
  • C' - Final value
  • r - Percentage of change.

Now we proceed to resolve on each case. 8) a) Please notice that the runner must cover the trail in less time and percentage time must be negative. If we know that C = 70 and r = - 10, then his new fastest time is:

C' = 70 · (1 - 10 / 100)

C' = 70 · 0.90

C' = 63

And again: (C' = 63, r = - 10)

C'' = 63 · (1 - 10 / 100)

C'' = 63 · 0.90

C'' = 56.7

The new fastest time is 56.7 seconds.

b) And the overall percentage improvement is:

r = (|C'' - C| / C) × 100 %

r = (|56.7 - 70| / 70) × 100 %

r = 19 %

The <em>overall percentage</em> improvement is 19 %.

9) If we know that C = 1.25 and r = 10, then the height next year is:

C' = 1.25 · (1 + 10 / 100)

C' = 1.375

And again: (C' = 1.375, r = 12)

C'' = 1.375 · (1 + 12 / 100)

C'' = 1.54

The height after the first increase is 1.375 meters and after the second increase is 1.54 meters.

To learn more on percentages: brainly.com/question/13450942

#SPJ1

3 0
2 years ago
Given m n, find the value of X.
Brut [27]

Answer:

x = 62

Step-by-step explanation:

62 and x are alternate exterior angles and alternate exterior angles are equal when the lines are parallel

7 0
3 years ago
3w-13w= -20???????????
Akimi4 [234]
3w-13w=-20

Combine like terms

-10w=-20

divide both sides by -10

w=2
5 0
2 years ago
Last week, steph curry made 56 free throws. if his free throw percentage is 80%, how many free throws did he attempt?
Finger [1]
80% of what is 56
0.80x = 56
x = 56 / 0.80
x = 70....so he attempted 70 free throws
3 0
3 years ago
Read 2 more answers
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