Mathematics, 20.09.2019 14:10 ajfijeoinf7312

Carolyn makes and sells necklaces. the material to make each necklace costs
$3.20. last week she made 12 necklaces and wants to make a total profit of $54.
using the equation 12(x+3.20)=54, carolyn determined that she will make a profit of $7.70 on each necklace. which error did carolyn make?
a. the solution is the amount she should sell each necklace for, and she will make a profit of $4.50 on each necklace.
b. she should have used the equation 12(x+3.20)=54 and found that she will make a profit of $1.30 on each necklace.
c. she should have used the equation x=54-12(3.20) and found that she will make a profit of $12.40 on each necklace.
d. the solution is the amount that it costs to make each necklace, and she should add $3.20 to find that she will make a profit of $10.90 on each necklace.

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Carolyn makes and sells necklaces. the material to make each necklace costs
$3.20. last week s...

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