Juanita is making necklaces to give as presents she plans to put 15 beads on each necklace beads are sold in packages of 20 what is the least number of packages she can buy to make necklaces and have no beads leftover over

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3 packs

To find the least number of packages Juanita can buy, we need to determine how many beads she would need in total for the necklaces.

Since each necklace requires 15 beads and she wants to make multiple necklaces, we can multiply the number of necklaces she wants to make by the beads required for each necklace. Let's call the number of necklaces she wants to make "N".

Total beads needed = Number of necklaces × Beads per necklace
Total beads needed = N × 15

Now, we need to determine how many packages she should buy to have at least that many beads. Each package contains 20 beads.

To find the number of packages she needs, we will divide the total beads needed by the number of beads in a package and round up to the nearest whole number.

Number of packages = Round up (Total beads needed / Beads per package)
Number of packages = Round up (N × 15 / 20)

For example, let's say Juanita wants to make 3 necklaces:

Number of packages = Round up (3 × 15 / 20)
Number of packages = Round up (45 / 20)
Number of packages = Round up (2.25)
Number of packages = 3

So, Juanita would need to buy at least 3 packages of beads to make 3 necklaces and have no beads leftover.