The owner of a used music store bought a compact disc for $4.70. When she sold it, her profit was $4.75. What was the selling pr
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Lets solve the system of equations step by step.
equation (1)
equation (2)
Step 1. Solve for
in equation (1)
equation (3)
Step 2. Replace equation (3) in equation (2) and solve for
:
equation (4)
equation (5)
Step 3. Replace equation (4) and equation (5) in equation (3)
(4) in (3)
(5) in (3)
We can conclude that the solutions of our system of equations are (6,-12) and (8,14)
Step 1. Solve for
Step 2. Replace equation (3) in equation (2) and solve for
Step 3. Replace equation (4) and equation (5) in equation (3)
(4) in (3)
(5) in (3)
We can conclude that the solutions of our system of equations are (6,-12) and (8,14)
So she used 
of the cord to make necklaces.
She splits the
length into 4 equal lengths.
To divide a fraction by a fraction, you multiply it by its reciprocal.
She used
of the original chord to make each bracelet.
She splits the
To divide a fraction by a fraction, you multiply it by its reciprocal.
She used