D. 12 beads
To find the unit rate, divide the total number of beads by the number of friends: 156 beads / 12 friends = 13 beads per bracelet. So the correct answer is B. 13 beads.
Ruby is making friendship bracelets. She has a total of 156 beads to make bracelets for 12 friends. If she uses all of the beads, what is the unit rate of beads per bracelet?
A. 10 beads
B. 13 beads
C. 15 beads
D. 12 beads
1 answer