Question
Jean used 180 beads to make a necklace. She used 2 white beads for every 4 black beads to form the following pattern. What was the total number of black beads she used?
3 m

Click button first when a symbol is required. X

Jean used 180 beads to make a necklace. She used 2 white beads for every 4 black beads to form the following pattern. What was the total number of black beads she used?