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AnnZ [28]
3 years ago
8

In a sale, there is 25% off all prices. A chair costs £100 before the sale. How much was it in the sale?

Mathematics
2 answers:
Butoxors [25]3 years ago
7 0
Well 25% = 1/4 = 1 quarter
A Quarter = 25
4 quarters = 100 = 4/4
Take 1 quarter from 100 and you get 75 = 3/4
Black_prince [1.1K]3 years ago
3 0
It would be 75 after the sale. Hope it helps! :)
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Choose the system of inequalities that best matches the graph below.
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Answer:

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Step-by-step explanation:

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4 0
3 years ago
the times of all 15 year olds who run a certain race are approximately normally distributed with a given mean
Butoxors [25]

The percentage of the runners who have times less than 14.4 sec is  0.15%

The times of all 15-year old who run a certain race are approximately normally distributed with a given mean of 18 sec and a standard deviation of 1.2 sec.

We know that,

where,

X = raw score = 14.4

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Putting the values,

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Disclaimer: The question is incomplete. Please read below to find the missing content.

Question: The times of all 15-year-olds who run a certain race are approximately normally distributed with a given mean of 026-1 = 18 seconds and a standard deviation of 026-2. = 1.2 sec. What percentage of the runners have times less than 14.4 seconds?

0.15%

0.15%

0.30%

0.60%

2.50%

Learn more about percentages here brainly.com/question/809966

#SPJ4

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2 years ago
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Answer:

Step-by-step explanation:

y=X-2

4 0
1 year ago
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