Question

Henry is building a fence. He uses 24 nails to secure 3 boards to the fence posts. At this rate, how many nails will Henry use to secure 21 boards to the fence posts?

Answer 1

168

Explanation:

took the test i guess

Answer 2

9514 1404 393

Answer:

168

Explanation:

At that rate, Henry will use 7 times as many nails to secure 7 times as many boards.

boards : nails = 3 : 24 = 21 : 168

Henry will use 168 nails.