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irga5000 [103]
2 years ago
5

Simply the expression

Mathematics
1 answer:
sp2606 [1]2 years ago
7 0

Answer:

5w^22

Step-by-step explanation:

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A Web music store offers two versions of a popular song. The size of the standard version is 2.1 megabytes (MB). The size of the
SashulF [63]

Answer:

There were 440 Standard version of songs downloaded in Web music store.

Step-by-step explanation:

Given,

Total number of songs downloaded = 1310

Total size of the downloaded songs = 4752 MB

Size of standard version of song = 2.1 MB

Size of high quality version of song = 4.4 MB

Solution,

Let the number of standard version  of song be 'x'.

And also let the number of high quality version of song be 'y'.

Now, total number of songs is the sum of total number of standard version  of song and total number of high quality version of song.

On framing the above sentence in equation form, we get;

x+y=1310\ \ \ \ \ equation\ 1

Now, Total size of the downloaded songs is the sum of total number of standard version of song multiplied with size of standard version  of song and total number of high quality version of song multiplied with size of high quality version of song.

On framing the above sentence in equation form, we get;

2.1x+4.4y=4752

Multiplying with 10 on both side, we get;

10(2.1x+4.4y)=4752\times10\\\\21x+44y=47520\ \ \ \ equation\ 2

Now multiplying equation 1 by 21, we get;

21(x+y)=1310\times21`\\\\21x+21y=27510\ \ \ \ equation\ 3

Now subtract equation 3 from equation 2, we get;

(21x+44y)-(21x+21y)=47520-27510\\\\21x+44y-21x-21y=20010\\\\23y=20010\\\\y=\frac{20010}{23}\\\\y=870

On substituting the value of y in equation 1, we get the value of x;

x+y=1310\\\\x+870=1310\\\\x=1310-870=440

Hence There were 440 Standard version of songs downloaded in Web music store.

7 0
3 years ago
What is 9 to the power of 4 + 6(7 x 3) - 3?
marshall27 [118]

Answer: 127^9 so 8594754748609400000

Step-by-step explanation: i’m not sure but 4+6 (7x3)-3 = 127 127^9

5 0
3 years ago
If rice costs ​$1.50 per​ kilogram, determine the cost of a pound of rice.
Darina [25.2K]

Answer:

$3.3075

Step-by-step explanation:

1 kilogram = 2.205 pounds

So we will multiply the $1.50 by 2.205 to get the cost per pound of rice

1.50 * 2.205 = $3.3075

5 0
3 years ago
(-6)-(+67) subtracting integers
alukav5142 [94]
(-6)-(+67)= -73
Hope this helps
6 0
3 years ago
Read 2 more answers
Find the equation of a line that contains the points (0,0) and (6,−7). Write the equation in slope-intercept form, using fractio
shtirl [24]

Use the slope formula below:

\large \boxed{m =  \frac{y_2 - y_1}{x_2 - x_1} }

To form an equation of a line - we need to find a slope and the y-intercept from y = mx+b. We are given two points which we can substitute in the formula.

\large{m =  \frac{0 - ( - 7)}{0 - 6} } \\  \large{m =  \frac{0 + 7}{ - 6}  \longrightarrow  \frac{7}{ - 6} } \\  \large  \boxed{m =  -  \frac{7}{6} }

We have finally got the slope. Next is to find the y-intercept. First we rewrite the equation of y = mx+b by substituting the slope.

\large \boxed{y = mx  + b}

The equation above is the slope-intercept form. Substitute m = -7/6 in the equation.

\large{y =  -  \frac{7}{6} x + b}

Since the graph passes through (0,0) which is an origin point. In y = mx+b if the graph passes through origin point, that means the b-value is 0. Therefore:

\large \boxed{y =  -  \frac{7}{6}  + 0 \longrightarrow y =  -  \frac{7}{6} x}

Answer

  • y = -7x/6

Hope this helps and let me know if you have any doubts! Good luck on your assignment!

3 0
3 years ago
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