a clothing distributor sold an $80 coat at a selling price of $73 what was the percentage of discount for the coat
1 answer:
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For this case we have the following equation:
Rewriting we have:
We raise both members of the equation to the square:
Rewriting we have:
It's a extraneous solution because equality is not met by substituting x = 10 in the original equation:
Answer:
The solution is:
It's a extraneous solution
Rewriting we have:
We raise both members of the equation to the square:
Rewriting we have:
It's a extraneous solution because equality is not met by substituting x = 10 in the original equation:
Answer:
The solution is:
It's a extraneous solution