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4 years ago

What is the median number for the numbers 4,8,10,5,9?

Mathematics

2 answers:

Anettt [7]4 years ago

8 0

Hello There!

Median: The middle number when all the numbers are listed in oder from least to greatest.

To find the median, place the numbers in order from least to greatest.

In this case, the numbers would be 4, 5, 8, 9, 10

The middle number would be 8 so the median for this set of numbers is 8.

kumpel [21]4 years ago

5 0

The median for a set of numbers would be the one that appears closest to the middle of the set.

For the set 4, 8, 10, 5, 9, in order to find the median, we must first sort them numerically.

4, 5, 8, 9, 10

Now, which of these 5 numbers is the closest to the middle?
The answer to that would be 8, since it is actually the number in the middle.

The median number for the numbers 4, 8, 10, 5, 9 is 8.
Hope that helped =)

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2 years ago

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3 years ago

Megan is planting a garden with two beds with her mother and father. Megan can plant 1 garden bed in 8 hours. Her mother can pla

olganol [36]

Answer:

$1.5\text{ hours}$

Step-by-step explanation:

We know that Megan can plant 1 garden bed in 8 hours. Let M represent Megan's rate. So:

$M=\frac{1\text{ b}}{8\text{ hr}}$

We know that her mother can plant 2 garden beds in that time (8 hours). Let A represent the mother's rate. So:

$A=\frac{2\text{ b}}{8\text{ hr}}=\frac{1\text{ b}}{\text{ 4hr}}$

We can reduce this to 1 flower bed every 4 hours.

We also know that Megan's father can plant 1 1/3 or 4/3 garden beds in 8 hours. Let D represent the father's rate. So:

$D=\frac{4/3 \text{ hr}}{8 \text{ hr}}=\frac{1\text{ b}}{6\text{ hr}}$

We can reduce (4/3)/8 to 1/6.

We know that the three began working together. They worked together for 3 hours. So, after 3 hours, the amount of beds they planted all together is 3 hours times their respective rates. So, we can write the following expression:

$3(\frac{1}{8}+\frac{1}{4}+\frac{1}{6})$

We know that at this point, Megan's father left, leaving only Megan and her mother. We know that they worked together for another 30 minutes, or 1/2 of an hour. So, after this, they will have planted:

$3(\frac{1}{8}+\frac{1}{4}+\frac{1}{6})+\frac{1}{2}(\frac{1}{8}+\frac{1}{4})$

Garden beds.

Now, Megan's mother leaves, leaving only Megan. Let's let x represent the number of hours. So, we can write the last part of our expression:

$3(\frac{1}{8}+\frac{1}{4}+\frac{1}{6})+\frac{1}{2}(\frac{1}{8}+\frac{1}{4})+x(\frac{1}{8})$

We know that in the end, they planted 2 flower beds. So, our entire expression equals 2:

$3(\frac{1}{8}+\frac{1}{4}+\frac{1}{6})+\frac{1}{2}(\frac{1}{8}+\frac{1}{4})+x(\frac{1}{8})=2$

To find out how long it took Megan, we will solve for x.

Let's do each term individually:

First Term:

We have:

$3(\frac{1}{8}+\frac{1}{4}+\frac{1}{6})$

Make the fractions with common denominators. Our common denominator here is 24. So:

$3(\frac{3}{24}+\frac{6}{24}+\frac{4}{24})$

Add:

$=3(\frac{13}{24})$

Multiply. So, our first term is:

$=\frac{39}{24}$

Second Term:

We have:

$\frac{1}{2}(\frac{1}{8}+\frac{1}{4})$

Again, let's turn the fractions into fractions with common denominators so we can add them. The common denominator here is 8. So:

$\frac{1}{2}(\frac{1}{8}+\frac{2}{8})$

Add:

$=\frac{1}{2}(\frac{3}{8})$

Multiply:

$=\frac{3}{16}$

So, our equation is now:

$\frac{39}{24}+\frac{3}{16}+\frac{1}{8}x=2$

Add on the left. Use the common denominator of 48. So:

$\frac{78}{48}+\frac{9}{48}+\frac{1}{8}x=2$

Add:

$\frac{87}{48}+\frac{1}{8}x=2$

Subtract 87/48 from both sides:

$\frac{1}{8}x=2-\frac{87}{48}$

Let turn into a fraction with a denominator of 48. So:

$\frac{1}{8}x=\frac{96}{48}-\frac{87}{48}$

Subtract:

$\frac{1}{8}x=\frac{9}{48}$

Reduce the right using 3:

$\frac{1}{8}x=\frac{3}{16}$

Multiply both sides by 8:

$x=\frac{24}{16}$

Reduce using 8. So, the time it will take Megan to finish planting the garden beds by herself is:

$x=3/2=1.5\text{ hours}$

And we're done!

3 0

4 years ago

20 POINTS AND BRAINLIEST ANSWER

soldi70 [24.7K]

Let's look at our equation,
p÷7

We must look at all our options before selecting one of them.

Can the answer be A?

Jayna does not know how many pages she needs to read. She knows she has already read for 7 days.

No that would not work,
We would have subtraction. It would look like this.
p-7.

How about B?

Jayna does not know how many pages she needs to read. She knows that she has 7 days to finish her book.

That would actually work. This is how our equation would look.
p÷7.
It matches the expression.

Before we make that our final answer, we should check everything else.

Here is C
C.
Jayna does not know how many days she has to finish reading. She knows she has to read 7 more pages.

That would not work.

How about D?

D.
Jayna does not know how many pages she has already read. She knows she has to read 7 more.

D is also incorrect. It would not work at all.

That means our final answer is:

B.
Jayna does not know how many pages she needs to read. She knows that she has 7 days to finish her book.

I hope that helped! :)

5 0

3 years ago

Read 2 more answers