Answer:
30:10
Step-by-step explanation:
Every 30 Minutes reading you get 10 minutes screentime
The appropriate factoring of your expression is ...
A. -2x(x + 8)(x - 2)
_____
After factoring out -2x, you have -2x(x² +6x -16), so you're looking for factors of -16 that add to +6. Those factors are (8)×(-2). This lets you write the complete factorization as above.
SOLUTION
At the same time t,
Train 1 would have covered a distance of 80t, since distance = average speed x time.
Train 2 would have covered a distance of 70t.
Now both added should give 210 miles
That is 80t + 70t = 210
150t = 210
t = 210/150
t = 1.4 hours
Answer:
The answer will be B
Step-by-step explanation: