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Kay [80]
3 years ago
5

Madison read 1/2 of a book in the morning, and she read some more at night. By the end of the day she still had 2/5 of the book

left to read. How much of the book did Madison read at night?​
Mathematics
1 answer:
chubhunter [2.5K]3 years ago
3 0

Answer: 1/10

Step-by-step explanation:

At the end of the day, she still had 2/5 of the book to read. Which meant that she had read 3/5 of the book. Since she read 1/2 of the book in the day, we would read 3/5 - 1/2 = 6/10 - 5/10 = 1/10 of the book at night.

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56 successful students is 70​% of what number of​ students?
ivanzaharov [21]

Answer:

56 is 70% of 80 students.

Step-by-step explanation:

70% = 0.7

56 divided by 0.7 = 80

4 0
3 years ago
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Mr Tom shared $300 between his two sons aged 15 years and 10 years in
Sonbull [250]

Answer:

Son of 15 years $180

Son of 10 years $120

Step-by-step explanation:

15 + 10 = 25

   25          300

   15              x = 300*15/25

                    x = 180

   25          300

   10              x = 300*10/25

                    x = 120

Son of 15 years $180

Son of 10 years $120

3 0
3 years ago
Ansley is inviting her friends to a party at wonder world amusement park. She has to spend more than $500 to get a free park pas
Harman [31]
Ansley should invite a minimum of 15 guests.


$500 - $130 = $470 / 25 = 14.8 but she needs to be over the amount so
15 guests is the answer

I hope this helps :)
8 0
3 years ago
Read 2 more answers
find the value of x2 values that separate the middle 90% from the rest of the distribution for 8 degrees of freedom
Anettt [7]

Answer:

With alpha 0.95 and 8 degrees of freedom χ²= 2.73

And with alpha 0.05 and 8 degrees of freedom χ²=15.51

Step-by-step explanation:

The significance level ∝ = 1- 0.9 = 0.1

But we need the area of the middle so we divide this significance level with 2

so that we get exactly the middle area .

Dividing 0.1/2= 0.05

So we will have two values for chi square

One with  0.9 + 0.05 = 0.95 alpha and one with 0.05 alpha . This is because the chi square is right tailed.

So with alpha 0.95 and 8 degrees of freedom χ²= 2.73

And with alpha 0.05 and 8 degrees of freedom χ²=15.51

This can be shown with a graph.

4 0
3 years ago
Applied to the graph
lana [24]

Answer:

Using the graph of f(x) and g(x), where g(x) = f(kx), determine the value of k. A: 4 B: 1/4 C:-1/4 D:-4 "

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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