Sally can buy 3 pieces of candy for $1.20 or 5 pieces for $2.50, which has a better unit rate? Explain.
2 answers:
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Except there are values you want to substitute into the expression, this is what your answer looks like:
For this case we have the following system of equations:
Equating the values of y we have:
From here, we can clear the value of x.
We have then:
Then, we look for the value of y.
For this, we substitute x in any of the equations:
Answer:
The ordered pair solution of the system of equations, is given by:
Equating the values of y we have:
From here, we can clear the value of x.
We have then:
Then, we look for the value of y.
For this, we substitute x in any of the equations:
Answer:
The ordered pair solution of the system of equations, is given by: