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hodyreva [135]
2 years ago
12

Ayden had a goal of finishing painting at least 80%80\% 80% 80, percent of the 500500 500 500 square meters of a house's walls b

y today. He actually finished painting 415415 415 415 square meters today. Did Ayden meet his goal? Why?
Mathematics
1 answer:
ANEK [815]2 years ago
3 0

Answer:

<u>Yes</u>, Ayden meet his goal.

Step-by-step explanation:

Given:

Total square meters of house's wall Ayden had to paint = 500 square meters.

The percent of goal Ayden had for painting the wall = 80%.

The square meters of wall Ayden finished painting = 415 square meters.

Now, to find whether Ayden meet his goal.

So, to get the square meters of wall Ayden had the goal:

80\%\ of\ 500\\\\=\frac{80}{100}\times 500\\\\=0.80\times 500\\\\=400\ square\ meters.

<u><em>Thus, the goal Ayden had was to paint 400 square meters of wall.</em></u>

<u><em>And, he actually finished 415 square meters of wall.</em></u>

<u><em>So, the square meters of wall Ayden had finished painting is more than his goal to achieve.</em></u>

<u><em>Hence, Ayden meet his goal.</em></u>

Therefore, yes, Ayden meet his goal.

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Expand the given expression.
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Multiply +7 and  -3.4 to obtain - 23.8. Therefore
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Write the constant terms together. Therefore
22.5 + 7(n - 3.4) = 7n + 22.5 - 23.8 = 7n - 1.3

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2 years ago
the population of Ketcham high school has been decreasing by 5 % per year.if it's population is currently 2600 which of the foll
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5% = .05
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There were 8 judges at a gymnastics competition. Kathleen received these scores for her performance on the uneven parallel bars.
Korolek [52]

Answer:

below

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mean : 8.8

The mean is the average, so you find it by adding all the numbers together and dividing by n, or how many numbers there are. For this, I added to get 70.4 and divided that by 8 (8 total scores).

70.4/8 = 8.8.

median : 8.85

The median is the middle of the data set, so you put the numbers in increasing order (lowest number to highest number) and then finding the middle of that set. For this set, since there is an even number of numbers (8), you have to find the middle by adding the two middle numbers and dividing by 2.

8.2, 8.7, 8.8, 8.8, 8.9, 8.9, 8.9, 9.2

The middle numbers are 8.8 and 8.9, so you add those together and divide by 2 to get 8.85.  

mode : 8.9

The mode is just what number appears most often. Because 8.9 appears three times in this data set, more than any other number, the mode is 8.9.

b. The mean reflects a typical score because it is the average, and is used most often when someone is expressing a typical or "average" score. It is the score most people are likely to get, and as there are no outliers in this data set, it reflects a typical score for this data set. It is also the same as the mode, or most often score, in this data set.

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Then, the probability that the portfolio's return in any given year is between -43.5 and 32.1 is:

P(-43.5

6 0
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