17.85714285714285 to nearest tenths is 17.9 .
First step=
we need to find time for i mile
which is
75/3000=1/40
then to find for 4000 miles we multiply that by 4000
which is 1/40x4000
cancel zeros
1/4x400
=100 hours for 4000 miles
Answer:
-16
Step-by-step explanation:
-32.3 - (-16.3).
we know:
-*- =+
-32.3 + 16.3
-16
To visualize better, look at it like this:
First, see if you can simplify 3/2. You can't, so leave it like that.
The rule for exponents is you subtract the exponent from the bottom (r) from the exponent on the top ()
Put that on the top, and you get