00:01
Diego has 90 songs on his playlist.
00:03
We need to figure out how many songs are in each genre.
00:08
So this is our total number of songs.
00:15
So we have 90 being multiplied.
00:21
40%.
00:22
All the percents are going to be put over 100 to change it to a decimal.
00:26
So 40 over 100.
00:30
So we can simplify.
00:31
We can take out a zero.
00:33
Both of them are divisible by 2.
00:35
So this becomes 90 times.
00:39
4 divided by this becomes 4 divided by 2 is 2 10 divided by 2 is 5 so this is really 90 over 1 times 2 over 5 so we multiply straight across and we get 180 divided by 5 180 divided by 5 comes out to be 36 so for letter a there's 36 songs so the i'm going to do the same thing for country.
01:18
So 90 times 10 over 100.
01:23
So the zeros cancel out.
01:25
One of the zeros cancel out.
01:27
And we're left with 90 times 1 over 10, which is 90 over 1 times 1 over 10...