Question

@jim_thompson5910

Answer 1

How far did you get?

Answer 2

I just need someone to check this and direct me to the right answer.

->Nate:
So the area of a single layer is 16pi or 16π .
That means that the area of the 3 layers is 3 times this, so

3 Layers=3(16π in^2)
Nate=48π inches
---------------------------------------------
-> Katrina:
So now we compare this to Katrina's frosting, so there are 5 layers, .
Since Katrina has 5 layers,
it would be
6(9π)=54π inches

Therefore, Katrina uses more frosting.

@jim_thompson5910

Answer 3

the first part is correct

the second part should be 5(9π) and NOT 6(9π)

Answer 4

Nate: 150.72 inches
Katrina: It's not 6(9pi) ? O.o

Answer 5

you wrote 6(9π)

Answer 6

it should be 5(9π) since there are 5 icing layers (not 6)

Answer 7

... Crap,I think I'm doing this wrong. Can we just start over?

Answer 8

You did the first part correctly

Answer 9

Nate baked 3 cakes using a circular cake pan of diameter 8 inches.
He plans to make a layered cake with one cake on top of the other with frosting only in between the cakes and on top of the third cake.

That is the first half, so my work reflects all that?

Answer 10

yes it does

Answer 11

Alright, so next part..
-Katrina made 5 cakes using a circular cake pan of diameter 6 inches.
D= 6

-She plans to make a layered cake with each cake on top of the other and frosting only in between the cakes and on top of the 5th cake.

- The height of frosting in both their cakes is the same.

Answer 12

So you just need to find the area of one circle

Then multiply by 5

Answer 13

5(9pi) ?

Answer 14

yep

Answer 15

Nate: 150.72 inches
Katrina: 141.37 or 141.4 in

Answer 16

After that I believe that's it and you just have to find the answer, but Idk the wording throws me off.*

Answer 17

What's the difference in the two results?

Answer 18

I think it's A. , but I don't get the 602 part..

Answer 19

What difference did you get?

Answer 20

9.35

Answer 21

I'm getting

48*pi-45*pi = 9.42477796

Answer 22

I used a calculator to get that

Answer 23

So that means Nate's total area is 9.42 sq inches larger than Katrina's

Answer 24

Ah I plugged in the wrong #'s, it's D. Thank you soo much :)

Answer 25

well you rounded which is why your answer is off a bit

but 9.35 is close to 9.42

Answer 26

Thanks!

Answer 27

you're welcome