Question

on this necklace the ratio of black beads to white beads is 1:4 How many more black beads do you need to add to make the ratio of black to white 4:1 ?

WILL GIVE BRAINLIEST!!!

Answer 1

Answer = 15 black beads

1:4 = 1 black bead and 4 white beads
4:1 = 16:4
16 - 1 = 15 black beads