Answer:
5a+1 1/2=4
a = 1/2
Step-by-step explanation:
Answer:

Step-by-step explanation:

When speed is 3 mi/hr faster.


6cm^3 =
6* 0.001dm^3=
6*10^(-3)dm^3=
6*10^(-3)*10^(-3)m^3=
6*10^(-6)m^3
or 0.000006 meters cubed
5ab/5b= a
-10b^2/5b= -2b
15bc/5b= 3c
Put it all together
Final answer: a-2b+3c