Answer:
51.1 ≈ r
Step-by-step explanation:
"A bicycle wheel travels 321 in for each revolution"- means that 321 is the circumference of the wheel that is a circle.
C = 2· π· r
What is the radius of the wheel ?
321 = 2· π· r, divide both sides of the equation by 2 π
(321/2·π) = r , use calculator, solve and round the answer
51.1 ≈ r
Answer: 0.074
Step-by-step explanation:
It’s simple actually! Just do 0.72/9.72 and it gives you 0.074.
Hope this helps!
9514 1404 393
Answer:
3.75 hours
Step-by-step explanation:
Travel time can be found using the relation ...
time = distance/speed
time = (2475 mi)/(660 mi/h) = 3.75 h
It will take 3 3/4 hours to travel that distance.
Answer:
x² + 12
Step-by-step explanation:
note 2 days = 48 hours
divide amount of water by 48 for hourly rate, that is

=
+
= x² + 12