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3 years ago

Please someone help me thanks :D

Mathematics

1 answer:

Luda [366]3 years ago

6 0

Answer:

The answer is b.

Step-by-step explanation:

If you divide y by x for every pair, you will get the number 4. This means that it is proportional because each pair has the same solution.

Hope this helps!

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WILL GIVE BRAINLIEST, THANK YOU, AND RATING!!!

frozen [14]

64-128-256
each step double previous number

5 0

4 years ago

A Web music store offers two versions of a popular song. The size of the standard version is 2.4 megabytes (MB). The size of the

Margarita [4]

Answer:

880 high-quality version

Step-by-step explanation:

I think the below is your full question:

A Web music store offers two versions of a popular song. The size of the standard version is 2.1megabytes (MB). The size of the high-quality version is 4.5 MB. Yesterday, there were 1290 downloads of the song, for a total download size of 4821 MB. How many downloads of the high-quality version were there?

Here is my answer:

Let x is the number of high-quality version

So the number of standard version= 1290 - x

We also know: total download size of 4821 MB. which means:

4.5x + 2.1(1290-x) = 4821

<=> 4.5x+2709-2.1x=4821

<=> 2.4x=2112

<=> x=880

So there were 880 high-quality version

5 0

3 years ago

Read 2 more answers

PLEASE HELP

oee [108]

3:1 ratio meaning for every 3 brown eyed people there are 1 blue eyed. So if you have 12 brown every you have 4 blue eyed. Giving you a total of 16 people.

6 0

3 years ago

Please help! Thank you if you do :)

Kruka [31]

Step-by-step explanation:

A(-5,1) and B(0,4)

$m \: = \: \frac{y2 - y1}{x2 - x1}$

X1=0 , Y1=4 X2= -5 , Y2=1

$m \: = \: \frac{3 }{5}$

$y - y1 = m(x - x1)$

y - 4 = ⅗(x-0) ==> y - 4 = ⅗ X ==> y = ⅗ X + 4

C is the answer

6 0

3 years ago

The numbers 1,6,8,13,15,20 can be placed in the circle below, each exactly once, so that the sum of each pair of numbers adjacen

kompoz [17]

Answer:

$\fbox{\begin{minipage}{4em}36 ways\end{minipage}}$

Step-by-step explanation:

Step 1: Re-state the problem in an easier way to set up a permutation problem

"The numbers 1,6,8,13,15,20 can be placed in the circle below, each exactly once, so that the sum of each pair of numbers adjacent in the circle is a multiple of seven"

The series above can be represented again, in form of:

7a + 1, 7b - 1, 7c + 1, 7d - 1, 7e + 1, 7f - 1

with a, b, c, d, e, f are non-negative integers.

=> 3 numbers are multiply of 7 plus 1

=> 3 numbers are multiple of 7 minus 1

Step 2: Perform the counting:

For the 1st number, there are 6 ways to select

To satisfy that each pair of numbers creates a multiple of 7, then:

For the 2nd number, there are 3 ways left to select

For the 3rd number, there are 2 ways left to select

For the 4rd number, there are 2 ways left to select

For the 5th number, there are 1 way left to select

For the 6th number, there are 1 way left to select

=> In total, the number of possible ways to select:

N = 6 x 3 x 2 x 2 x 1 x 1 = 72

However, these numbers are located around a circle, each option is counted twice.

=> The final number of possible ways:

N = 72/2 = 36

Hope this helps!

3 0

4 years ago