Answer:
60 inches
Step-by-step explanation:
the least common multiple of 12 and 10 is 60
you can use the prime factorization tree or a list method
1st multiple of 10: 10 1st multiple of 12: 12
1st multiple of 10: 20 1st multiple of 12: 24
1st multiple of 10: 30 1st multiple of 12: 36
1st multiple of 10: 40 1st multiple of 12: 48
1st multiple of 10: 50 1st multiple of 12: 60
1st multiple of 10: 60
You can stop when a common multiple is reached
Let number of songs are played in a commercial be a
number of songs are played in a movie be b
Adrian earned a total of $1010 -> a*40 + b*130 = 1010 (1)
14 commercials and movies -> a+b = 14 (2)
(1) - (2)*40 = a*40 + b*130 - a*40 -b*40 = 1010 -14*40
-> b*90 = 450
-> b = 5
-> a = 14-5 = 9
I'd say its 1.02% but don't quote me on that
