Answer:
30 mph
Step-by-step explanation:
train stopped after 520 miles
780 miles to go
stopped at 20 hours
stopped for 4 hours
34 hours used up...
26 hours left
780 miles to go
780 miles/26 hrs = 30 m/hr
10:12
15:18
i got this from doubling the first to make 5 = 10 and then that made 6 = 12. the second one was the same but tripled to make 6 = 18 and then that made 5 = 15
The 3 consecutive integers of a sum of 81<span>X+(X+2)+(X+4)=81
3X+6=81
3X=81-6
3X=75
X=75/3</span>
Answer:
Step-by-step explanation:
(1-2z)(1+2z) = 1-4z^2
you don't have a correct choice given the problem
is it possible there is a negative out front of the problem
- (1-2z)(1+2z) = -(1-4z^2) = 4z^2 -1
Otherwise, send an email to your instructor