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sashaice [31]
3 years ago
15

Can u please answer the question

Mathematics
1 answer:
Zolol [24]3 years ago
7 0
Ok it is said that it is almost 15%
So we know how to round:
if it the rounding place value is 5 or more, we round upwards
If it is less than 5, it stays the same

So in this example:
The percentage is rounded up to the nearest whole number:
Look at the number after the decimal point.

14.1% ⇒ is closer to 14%
15.1% ⇒ is closer to 15%
15.8% ⇒ is closer to 16%
14.2% ⇒ is closer to 14%
14.3% ⇒ is closer to 14%
15.5% ⇒ is closer to 16%
14.4% ⇒ is closer to 14%
15.6% ⇒ is closer to 16%
14.5% ⇒ is closer to 15%
15.7% ⇒ is closer to 16%
14.6% ⇒ is closer to 15%
15.3% ⇒ is closer to 15%
14.7% ⇒ is closer to 15%
15.9% ⇒ is closer to 16%
14.8% ⇒ is closer to 15%
15.2% ⇒ is closer to 15%
14.9% ⇒ is closer to 15%
15.4% ⇒ is closer to 15%

These are the values that the percentage could have been to one decimal place:
15.1%, 14.5%, 14.6%, 15.3%, 14.7%, 14.8%, 15.2%, 14.9%, and 15.4%


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Out of 25 students taking a midterm psychology exam, 15 answered the first of two bonus questions, 11 answered the second bonus
Burka [1]

Answer:

Percentage of students who tried both questions = 8\%

Percentage of students who tried at least one question = 96\%

Step-by-step explanation:

Given: 25 students take a midterm psychology exam, 15 answered the first of two bonus questions, 11 answered the second bonus question, and 1 didn't bother with either one.

To find: percentage of students who tried both questions and percentage of students who tried at least one question

Solution:

Let A denotes students who answered the first of two bonus questions and B denotes students who answered the second bonus question.

Let U denotes the universal set denoting students who take a midterm psychology exam.

n(A)=15\,,\,n(B)=11\,,\,n(U)=25

n\left ( A'\cap B' \right )=1

n\left ( A'\cap B' \right )=n\left ( A\cup B \right )'\\=n(U)-n\left ( A\cup B \right )\\\Rightarrow 1=25-n\left ( A\cup B \right )\\n\left ( A\cup B \right )=25-1=24

n\left ( A\cup B \right )=n(A)+n(B)-n\left ( A\cap B \right )\\24=15+11-n\left ( A\cap B \right )\\n\left ( A\cap B \right )=15+11-24=2

Percentage of students who tried both questions = \frac{2}{25}\times 100=8\%

Percentage of students who tried at least one question = \frac{24}{25}\times 100=96\%

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Andre is planting saplings (baby trees). It takes him 30 minutes to plant 3 saplings. If each sapling takes the same amount of t
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Answer:

140 minutes

Step-by-step explanation:

If it takes him 30 mins to plant three, then 30 divided into three equal groups is 10. Then we multiply 14 and 10 together since it takes Andre ten minutes to plant each sapling. This means  that the 14 saplings takes ten minutes EACH to plant.

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I’m seriously stuck Please help in anyway
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Answer:

Step-by-step explanation:

8 over 2

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1). no

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