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Dennis_Churaev [7]
3 years ago
7

Any Help Please?!

Mathematics
1 answer:
umka2103 [35]3 years ago
4 0
Total number of students in the sample = 100

Atleast 3 means equal to or greater than 3. So in order to find the number of students in the sample who play outdoor games for atleast 3 hours we need to add the number of students who play for 3 hours or more.

Therefore, number of students who play for atleast 3 hours = 62 + 8 + 0 = 70

In the sample of 100 students, 70 students play the outdoor games for atleast 3 hours.

Base on this we can the sample proportion of students who play outdoor games for atleast 3 hours = 70/100 = 0.7

Based on the sample proportion, out of 1200 students the expected number of students who will play outdoor games for atleast 3 hours = 0.7 x 1200 = 840 students

Thus, 840 students out of 1200 would be expected to play outdoor games for at least three hours every week. Option B is the correct answer
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1200 = 100%
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7 0
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Kaelyn Kaitlyn start with $15 and saved $3.50 each day what expression represents the total amount of Taylor save
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Your equation should look like this:

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Hope this helps!

6 0
3 years ago
What is AB to the nearest meter
sashaice [31]

Answer:

C. 15

Step-by-step explanation:

Small triangle is similar to larger one so we can use the similarity ratio to solve the question:

CE/CA = DE/AB

4/12 = 5/AB cross multiply expressions

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6 0
3 years ago
Read 2 more answers
Erin gets her exercise by running. The graph shows the distances she covers in a given amount of time. How many hours does it ta
soldi70 [24.7K]

The correct answer is  c. 2 \frac{1}{2} hours

Explanation:

The graphic shows the relationship between the distance Erin covers by running and the time this requires. Additionally, to know the specific time that takes for Erin to run a specific distance or vice versa it is necessary to observe at which point the two variables intersect in the line of the graph.

According to this, Erin runs 25 miles (y-axis) in 2.5 hours (x-axis), which you can know because in the line shown by the graph the distance 25 miles that is in the middle of 20 and 30 miles intersects with 2.5 hours or the middle between 2 and 3. Additionally, this number can be expressed as 2 and a half hours, 2.5 or even 2 \frac{1}{2} hours because the fraction represents half. This makes option C the answer.

6 0
3 years ago
Karen depostited $5000 as a certificate of deposit in a bank for a period of 3 years. The certificate or deposit pays a simple i
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Answer:

15% per year

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Step-by-step explanation:


4 0
3 years ago
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