Question

What is the number of full rotations a tire will complete in 10,000 miles if the tire is 24 inches in diameter??

Answer 1

Is there a formula to find out this??

Answer 2

first convert miles to inches

Answer 3

1 mile = 63360 inches

Answer 4

Could you help me do one first? If the diameter is 24 inches?? I have 3 to do. Just need to see how the first one is done.

Answer 5

again, convert miles to inches

Answer 6

10,000 miles = ______ inches

fill in the blank

Answer 7

This is what my calc says. I know this is wrong 6.336e+8

Answer 8

that's correct

Answer 9

now we calculate the circumference

Answer 10

circumference = pi * diameter = ?

Answer 11

75.4?

Answer 12

good now we divide 6.336e+8/75.4

Answer 13

11.9?

Answer 14

nope

Answer 15

0.084?

Answer 16

(6.336 * 10^8)/75.4 = ?

Answer 17

Oh Okay One sec...

Answer 18

I don't know. I'm getting a huge number! :(

Answer 19

tell me what it is

Answer 20

8403183.02387

Answer 21

good, now we round down to

8,403,183

Answer 22

I'm going to fail Geometry this project is due tomorrow! :(

Answer 23

it's supposed to be a big number. this is the number of times the wheel will turn when we drive 10,000 miles which is a lot

Answer 24

Oh Okay ! So this is the answer??

Answer 25

yes

Answer 26

Wow Thanks a Bunch!! I have another question??

Answer 27

sure

Answer 28

What would happen to the number of rotations if the circumference of the tire was increased by 20%?

Answer 29

I have more but I know you may be busy.

Answer 30

you do what we did before except the circumference this time is

1.2 * 75.4

Answer 31

This project is due tomorrow.

Answer 32

so we divide

(6.366 * 10^8)/ (75.4 * 1.2)

Answer 33

the number of rotations decreases

Answer 34

And if it decreases by 20%?

Answer 35

not by 20%

Answer 36

No that's the other question if the circumference decreased by 20%?

Answer 37

i understand what you meant

if the circumference decreases by 20% the number of rotations decreases, but NOT by 20%.

Answer 38

it decreases by some other percentage

Answer 39

Okay thank you so much!!

Answer 40

I have another question @Vocaloid???

Answer 41

sure

Answer 42

It is asking me to estimate how much I drive in a week for the car with 24 in diameter tire. Calculate daily rotations?? If I say I drive 150 miles per week how would I calculate that?

Answer 43

same thing as we did before.

Answer 44

convert miles to inches

Answer 45

then divide by circumference

Answer 46

see our earlier work if you need help

Answer 47

Where does the 150 come in at??

Answer 48

If I say that's what I drive per week.

Answer 49

repeat what we did the first time

Answer 50

instead of 10,000 miles use 150 miles...

Answer 51

Would it be 1,260,477

Answer 52

almost

Answer 53

126047

Answer 54

Wow!! Can't believe I was that close. Last question ?

Answer 55

Predict when you will need to switch the front and back tires?

Answer 56

hm. did they give you any background information on this?

Answer 57

i don't know much about cars or tires

Answer 58

They say you rotate every 10,000 miles

Answer 59

oh ok that's easy then

Answer 60

You have been a lifesaver so far!! Thank a bunch!! ;)

Answer 61

since you drive 150 per week you just divide

10,000/150 to get the number of weeks

Answer 62

Wow!! You are a genius!! :)

Answer 63

np im going to sleep but feel free to tag someone if you need additional help

Answer 64

Okay Thank you so much again!!! ;)