Respuesta :
24 beads are needed this is because if you divided 30 by 1.25, you get 24 beads as a result.
If you would like to know how many beads are needed for the necklace which is 30 centimeters long, you can calculate this using the following steps:
30 centimeters / 1.25 centimeters = 24
Result: There are needed 24 beads.
30 centimeters / 1.25 centimeters = 24
Result: There are needed 24 beads.