Answer:
C
Step-by-step explanation:
Add 18 each time
first term is -108
an=a1+d(n-1)
d=common difference
a1=startng term
an=-108+18(n-1)
31 term
a31=-108+18(31-1)
a31=-108+18(30)
a31=-108+540
a31=432
31st term is 432
Answer: 60=5(7+x)
X= 5
Step-by-step explanation:
60 is the total amount of songs so it’s going to be divided into 5 different playlists. And those playlists are going to have 7 older songs plus the amount of new songs.
-2y = 48 + 6x
-6x - 2y = 48 ——(1)
-6x + 9y = -84
-6x = -84 -9y ——(2)
Substitute (2) into (1):
(-84 -9y) -2y = 48
-84 -9y -2y = 48
-84 -11y = 48
-11y = 48 + 84
-11y = 132
y = - 12
Substitute y = -12 into (1):
-6x -2(-12) = 48
-6x + 24 = 48
-6x = 48 -24
-6x = 24
X = -4
ANS : y= -12, x= -4
The answer is 24" hope this helps.
