On the album 1989 by taylor swift, blank space is 12 seconds longer than shake it off. if the combined time of the two songs is 7 minutes and 30 seconds, how long is shake it off? give your answer in minutes and seconds.

Givens:

Lest's call Blank Space and Shake it Off, the relations would be

Now, we replace the first equation into the second equation and solve for :

Then, we replace this value into the first equation

This means that Shake It Off is 204 seconds long and Blank Space is 216 seconds long.

you have 6 cupcakes

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation: