3 years ago

A.1.5

Mathematics

2 answers:

telo118 [61]3 years ago

8 0

Answer:

x=50 y=10

Step-by-step explanation:

KengaRu [80]3 years ago

4 0

the answer is D, because when you look at the chart

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3 years ago

After a 40% discount the cost of a sofa is $471 what was the original cost of the sofa?

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100% - 40% = 60%, meaning the discounted price is really just 60% of the original 100% price, let's say the 100% price is hmmmm "x".

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$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 471&60\\ x&100 \end{array}\implies \cfrac{471}{x}=\cfrac{60}{100}\implies \cfrac{471}{x}=\cfrac{3}{5}\implies 2355 = 3x \\\\\\ \cfrac{2355}{3}=x\implies 785=x$