Question

a necklace is being made with beads that are 1.25 centimeters in a diameter each. The necklace us 30 centimeters long. How many beads are needed?

Answer 1

Since the beads are exactly 1.25 centimeters long it would then take 24 beads side by side to get to a length of 30 centimeters for the necklace. In order to figure this out in written form you would then start by dividing 30 by 1.25. Your equation should look like this when it is done -- 30/1.25=24.