Answer:
1.2 hours
Step-by-step explanation:
Recall :
Distance = speed * time
Let the time taken = x
Creating an equation for the question :
Distance of train A + Distance of train B = 192
70 * x + 90 * x = 192
70x + 90x = 192
160x = 192
x = 192 / 160
x = 1.2
It takes 1.2 hours to be 192 miles apart.
He paid $107 for the sneakers (55+55)*0.7 = 107.
He paid $30 for socks, so in total he paid $137
Answer:
6√2 i.
Step-by-step explanation:
√-72
= √72 i
= √36 * √2 i
= 6√2 i.
