Question

A candle manufacturer sells cylindrical candles in sets of three. Each candle in the set is a different size. The smallest candle has a radius of 0.5 inches and a height of 3 inches. The other two candles are scaled versions of the smallest, with scale factors of 2 and 3. How much wax is needed to create one set of candles?

Answer 1

A. 27
B. 36
C. 53
D. 86
E. 98

Answer 2

@amistre64 @Elise_a18

Answer 3

@inowalst

Answer 4

V = pi * r^2 * h

V = 3.14 * 0.5^2 * 3

Simplify

Answer 5

2.355

Answer 6

Srry I forget how to do this

Answer 7

@Elise_a18 its fine

Answer 8

Yes, now multiply the radius and height by 2 and 3 to find the measurements for the other cylinders.

2 * 0.5 = ?
2 * 3 = ?

3 * 0.5 = ?
3 * 3 = ?

Answer 9

2 and 3 are the scale factors of the other 2 cylinders.

Answer 10

1
6

1.5
9

Answer 11

?

Answer 12

Yep, now find the volumes of those.

V = pi * r^2 * h

V = 3.14 * 1^2 * 6



V = pi * r^2 * h

V = 3.14 * 1.5^2 * 9

Answer 13

@Smileyside

Answer 14

18.84

63.585

Answer 15

Yes, now add them all.

2.335 + 18.84 + 63.585

Answer 16

is that what i was suppose to do?

Answer 17

2.355*

Answer 18

=84.76

Answer 19

Yes, just add them..and whichever option is closest to it is your answer.

Answer 20

so 86?

Answer 21

Yep