Question

Heather is building a ladder for her tree house. She will need 13 feet of lumber for each stilt and 2 feet of lumber for each rung on the ladder. How many feet of lumber does she need for a ladder with 2 stilts and 12 rungs?

29 feet because 2 + 13 + 12 + 2 = 29
50 feet because 2 (13) + 12 (2) = 50
160 feet because 13 (12) + 2 (2) = 160
210 feet because (2 + 13) (12 + 2) = 210

Answer 1

B. 50

Explanation:

For two stilts, you'd multiply 13 by two.

2(13) = 26

For twelve rungs you multiply 2 by 12.

12(2) = 24

Then you add the two numbers together to see how much would she needs.

24 + 26 = 50

This gives you the answer, which is equivalent to B.

Answer 2

B. 50

Explanation:

For two stilts, you'd multiply 13 by two.

2(13) = 26

For twelve rungs you multiply 2 by 12.

12(2) = 24

Then you add the two numbers together to see how much would she needs.

24 + 26 = 50

This gives you the answer, which is equivalent to B.