Question

could someone help me solve this step by step

Two gears are connected and are rotating simultaneously. The smaller gear has a radius of 4 inches, and the larger gear has a radius of 7 inches.

Part 1: What is the angle measure, in degrees and rounded to the nearest tenth, through which the larger gear has rotated when the smaller gear has made one complete rotation?

Part 2: How many rotations will the smaller gear make during one complete rotation of the larger gear?

Show all work.

Answer 1

@ganeshie8

Answer 2

@SedateFrog712 I'll answer yours if you answer mine

Answer 3

sorry I'm bad at math

Answer 4

@zepdrix

Answer 5

this problem requires the formula and understanding of
circumference of a circle
arc length given the angle

do you know those?

Answer 6

sort of I cant quite retain math that well

Answer 7

what do you understand by 'circumference of a circle.' ?

Answer 8

I know a little but not a lot and I cant quite think of anything off the top of my head right now that's why I'm asking if you could help

Answer 9

i can help :)
but first we have to figure out what you do know, and what you dont,

so do you know what circumference of a circle is?

Answer 10

yes I do

Answer 11

Can someone answer my question

Answer 12

so what is it?

Answer 13

@templeguy please go post your own question

Answer 14

I DID!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 15

@baru its equal to 2pi r

Answer 16

yes its equal to 2pi r

but what does it mean?

Answer 17

@templeguy please leave my question and pay attention to yours

Answer 18

I H Y G C

Answer 19

sorry I'm having wifi problems but it means the distance around a circle

Answer 20

yes! :)

Answer 21

so now do you know what an 'arc' of a circle is?

Answer 22

its the measure of the central angle