barb is making a bead necklace. she strings 1 white bead then 3 blue beads then 1 white bead and so on. write the numbers for the first 8 beads that are white. what is a rule for the pattern?
If Barb starts with a white bead, then a white bead will occur in every subsequent fourth bead. So it will be 1 + 4(7) to find the number of beads strung to get 8 white beads.
The first 8 white beads in the pattern is 8 white beads because 1+1+1+1+1+1+1+1=8. The pattern is 1 white, 3 blue, 1 white, 3 blue, and keep going on.= the same way.
