Kelly has 4 times as many songs on her music player as lou. tiffany has 6 times as many as songs on her music player as lou. altogether they have 682 songs on their music player how many songs dose kelly have

  248

Step-by-step explanation:

The ratios of the numbers of songs are ...

  kelly : tiffany : lou = 4 : 6 : 1

Then kelly has 4/(4+6+1) = 4/11 of the total number of songs.

  (4/11)(682) = 248

Kelly has 248 songs on her music player.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)