WE know that (distance) = Speed * time
and Speed = distance/time & time = distance/speed
Let AB = 60 mi. & the speed is 55 mi/h , then the spent to reach the rink is
t= 60/55 = 1.09 h
Since the total time is 2.75 h & he spent 1.09h to go to the rink, so the time spent on his way back is 2.75-1.09 = 1.659 h
So his speed on his way back is 60/1.659 =36.16 mi/h
Answer:
x = -0.9
Step-by-step explanation:
We must isolate the x variable. We can do this by subtracting 2.6 from both sides.
x + 2.6 - 2.6 = 1.7 - 2.6
x + 0 = -0.9
x = -0.9
Hope this helps!!
Answer:
21,2,24
Step-by-step explanation:
y=3x-6
y= 3*-5-6 y=-21
0=3*2-6
y=3*10-6 y=24
Answer:
f(x^2)=3x^2+5
Step-by-step explanation:
math