Question

Sydney is making bracelets, 3 bracelets require 21 beads. The number of braclets varies directly with the number of beads.

Write an equation in the form of y = ax then find the amount o
beads needed for 32 bracelets.

Answer 1

Explanation:

"varies DIRECTLY with" means there is an y = ax relationship.

y = number of bracelets

x = number of beads

3 = a×21

a = 3/21 = 1/7

now, when we have 32 bracelets

32 = 1/7 × x

32×7 = x = 224

224 beads are needed for 32 bracelets.