SOLUTION: Rita makes and sells necklaces. The materials to make each necklace cost $2.75. Last week she made 8 necklaces and wants to make a total profit of $78. Using the equation 8 (x + 2.

Question 1159831: Rita makes and sells necklaces. The materials to make each necklace cost $2.75. Last week she made 8 necklaces and wants to make a total profit of $78. Using the equation 8 (x + 2.75) = 78, Rita determined that she needs to sell each necklace for $7 to make a total profit of $78. Which error did Rita make?
Found 3 solutions by josgarithmetic, MathLover1, MathTherapy:
Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
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The materials to make each necklace cost $2.75. Last week she made 8 necklaces and wants to make a total profit of $78.
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Cost for 8 necklaces

Price x for profit of 78 dollars

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

->Rita made error in the equation
if the number of necklaces is , and the materials to make each necklace cost is $, Rita needed to subtract cost because she wants total profit of $

-> she needs to sell each necklace for $ to make a total profit of $

check:
she made necklaces
each necklace cost $-> total cost is each necklace cost $
if she sell them for $ each, she would earn amount of $
from that amount she subtract cost which is $
$-> which is her profit

Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
Rita makes and sells necklaces. The materials to make each necklace cost $2.75. Last week she made 8 necklaces and wants to make a total profit of $78. Using the equation 8 (x + 2.75) = 78, Rita determined that she needs to sell each necklace for $7 to make a total profit of $78. Which error did Rita make?

ERROR made:
The CORRECT equation above should give her a sale price of $12.50, each.
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