Question

Charmaine made 3 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 3 necklaces was $16.80. If the beads cost $2.70 for each necklace, how much did each pendant cost? sti U BO

Answer 1

Info given

Charmaine made 3 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 3 necklaces was $16.80. If the beads cost $2.70 for each necklace, how much did each pendant cost?

Solution

For this case let's assume that beads cost x and necklaces y we can set up the following equation:

`3(x+y)=16.80`

Where x and y represent the unitary prices. And we know that x= 2.70 so then we just need to solve for y like this:

`3(2.70+y)=16.80`

And solving for y we got:

`y=(16.80)/(3)-2.70=2.90`

So then each pendant cost 2.9$ for this case