Question

I really need all the help in these problems because I'm overly confused.
http://oi42.tinypic.com/15qzx42.jpg

Answer 1

Hint: circumference = distance traveled for 1 rev
so if there were 2 revolutions, you would multiply the circumference by 2.

Answer 2

can you find the circumference of a circle if you know the circle's diameter ?

Answer 3

Yes by using the c=pi times D

Answer 4

that is the first part to doing these problems. find the circumference

if it is not obvious, if you roll a circle (try a can), in one revolution it will move the distance of its circumference. You can do an experiment and see for yourself.
measure how far a can rolls after it turns exactly once. then measure the can's circumference. You should get the same number.

Answer 5

if you roll it 2 revolutions (turns) it goes twice as far, or 2* length of circumference

and it will go 10 times further if you roll it 10 revolutions.

Answer 6

So basically I find the circumference then multiply it by 2

Answer 7

Because of the two revolutions

Answer 8

Can someone help me set up the problems as well

Answer 9

So basically I find the circumference then multiply it by 2
Because of the two revolutions

yes.

Answer 10

? Can someone help me set up the problems as well

I don't understand the question.

if you mean for this problem. find C= pi * d (replace d with the number they give you)
then find 2*C and 10*C

Answer 11

@ladydeadpool do you understand this

Answer 12

what is the circumference of a circle with diameter 36 inches ?

Answer 13

113.097335

Answer 14

now for part (a), multiply that number by 2
for part (b), multiply it by 10
and give the units "inches"

Answer 15

that will be the answer for question 14.

Answer 16

By the way when you multiply by ten you multiply it by the same number you multiplied by 2

Answer 17

@phi