jacobbrochu jacobbrochu

05-02-2018
Mathematics

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Lucas is offered either 15% or $21 off his total shopping bill. how much would have to be spent to make the 15% option the best one?

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zrh2sfo zrh2sfo

05-02-2018

Let the total bill be x. We have:
0.15x > 21 <-- Since 15% is 0.15 using inequality calc. x >$140

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