t takes Dariya 35 seconds to download 5 songs from the Internet. How can the number of seconds it would take Dariya to download
3 answers:
Answer:
The time it takes to download 7 songs is 49 seconds.
Step-by-step explanation:
It is about a division problem.
The first step is to determine how long it takes to download just one song. You must divide the total seconds by the total songs downloaded. The result would be the time required to download just one song.
The previous value indicates that the download time is 7 seconds per song.
The second step is to determine how long it takes to download 7 songs. With the previous value in mind, you must multiply the time it takes to download one song by the 7 songs that Dariya wants to download, to obtain the total time it takes to download the 7 songs.
Thus, the time it takes to download 7 songs is 49 seconds.
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Option B
Probability of drawing yellow marble followed by a red marble is
<em><u>Solution:</u></em>
Given that a bag containing 12 yellow marbles, 16 red marbles, and 15 green marbles
So total number of marbles = 12 + 16 + 15 = 43
To find: probability of drawing yellow marble followed by a red marble if the first marble is not replaced
<em><u>The probability of an event is given as:</u></em>
<em><u>probability of drawing yellow marble followed by a red marble if the first marble is not replaced:</u></em>
First we pick up yellow marble.
Number of favorable outcomes = 12 yellow marbles
Total number of possible outcomes = 43 marbles
Now we have to pick red marble
But first marble is not replaced
So we have 43 - 1 = 42 number of possible outcomes
Favorable outcomes = 16 red marbles
So probability of drawing yellow marble followed by a red marble is:
Thus probability of drawing yellow marble followed by a red marble is