13. 1,6
18. -15,12
19. -7, 1/2
45 minutes i m sure all you do is count up or subtract 60 from 15
You need to have variables one one side and constants on the other. ax - ax + by = c - ax
by = c - ax
by/b = (c - ax)/b
y = (c - ax)/b
Answer:
C. T = 4n+6/2
Step-by-step explanation:
4n = 2(T-3)
or, 4n = 2T-6
or, 4n + 6 = 2T
or, 4n + 6 / 2 = T
or, T = 4n + 6 / 2
Distance = speed x time
time = distance/speed
= 340/85
= 4h
