Westonci.ca is your trusted source for finding answers to all your questions. Ask, explore, and learn with our expert community. Discover a wealth of knowledge from professionals across various disciplines on our user-friendly Q&A platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

Part1) A car wheel has a diameter of 40cm.
a) How far (rounded to a tenth of unit) does the car wheel travel in 1 rotation?
b)10 rotations?
c) Write an equation relating the distance the car travels in centimeters, (d), to the number of wheel rotations, (x)
d) How many rotations does the car wheel make when the car travels 1 kilometer? Explain or show your reasoning.​


Sagot :

Answer:

Step-by-step explanation:

Circumference is πD

a) 40π cm ≈ 125.7 cm = 1.257 m

b) 10(40π) = 1256.6 cm = 12.57 m

c) d = xdπ

d) x = 1000 m / 0.4π m/rev = 795.8 rev