Question

1.
A 12-ft-by-15-ft rectangular swimming pool has a 3-ft-wide no-slip surface around it. What is the outer perimeter of the no-slip surface? (1 point)

78 ft
78 ft2
198 ft
198 ft2

Answer 1

Do you know where to start with this problem?

Answer 2

no

Answer 3

do you know how to fin the perimiter?

Answer 4

yeah you just add all the sides together

Answer 5

right

Answer 6

Add 30 and 24, then add 12.

Answer 7

now you have three more feet on the edges

Answer 8

@emilyowl your answer isnt even one of the choices

Answer 9

yeah but what do I do after that?

Answer 10

add three to all the sides

Answer 11

okay

Answer 12

so i'm at 66

Answer 13

yea so am I...

Answer 14

just give me a sec

Answer 15

12+3+3 = 18,* 2 sides = 36
15+3+3= 21 * 2 sides = 42
I found this.

Answer 16

does this make sense to you?

Answer 17

yeah cuz then u add 36 and 42 to get 78

Answer 18

yea but do you understand why we got those numbers?

Answer 19

is it 78 ft or ft^2?

Answer 20

ft squared is only when you are dealing with area

Answer 21

yeah cuz 12 and 15 were the swimming pool thanks!

Answer 22

yep no problem