kayleegeise
16.12.2020 •
Mathematics
Simplify 29 ÷ 26.
A. 215
B. 43
C. 2–3
D. 23
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Ответ:
23
Step-by-step explanation:
Ответ:
There were 300 standard version of songs downloaded at Web music store.
Step-by-step explanation:
Let the number of standard version of song download be 'x'.
Let the number of high-quality version of song download be 'y'.
Given:
Total songs downloaded = 780
Now we know that;
Total songs downloaded is equal to sum of the number of standard version of song download and the number of high-quality version of song download.
framing in equation form we get;
Also Given:
Size of standard version of song = 2.5 MB
Size of high-quality version of song = 4.7 MB
Total Download size = 3006 MB
Now we know that;
Total Download size is equal to sum of Size of standard version of song multiplied by the number of standard version of song download and Size of high-quality version of song multiplied by the number of high-quality version of song download.
framing in equation form we get;
Now Multiplying equation 1 by 2.5 we get;
Now Subtracting equation 3 from equation 2 we get;
Substituting the value of y in equation 1 we get;
Hence there were 300 standard version of songs downloaded at Web music store.