Answer:
3a. 8t + 12c = 72
3b. t + c = 7
Step-by-step explanation:
number of tapes is t
number of Cds is c
so 8t + 12c = 72
and t + c = 7
so t = 7 - c
replace t = 7 - c in to the first equation
8(7 - c) + 12c = 72
56 - 8c + 12c = 72
4c = 72 - 56 = 16
c = 4
if c = 4, then t = 7 - c = 7 - 4 = 3
Answer:
C) 3/8
37
C) -8 or 8
B) 84.7
D) 7 1/3
Step-by-step explanation:
Think of an absolute value as just ignoring any negative signs.
Put it in slope intercept form and plot the y-axis then plot each of the slopes finding the x-intercept
