3 Answered Questions for the topic Substitution/Elimination

Substitution/elimination Precalculus Math Help Substitution Method

10/08/18

Use substitution and elimination method.
Substitution: y=x2-6x+9                      y+x=5     Elimination: y=x2-11x-36                   y=-12x+36
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Substitution/elimination

04/02/18

The sum of the digits of a certain two-digit is 15. When you reverse its digit you increase the number by 27. Find the number
I want it to be self explanatory and well defined with a lot of description, basically steps on how to do it.
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Substitution/elimination

02/13/18

You have 132 total quarters and nickels. The amount is $21.60. How many quarters and how many nickels do you have?
How many nickels and quarters will be equivalent to $21.60 if you have 132 total coins?
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