3 years ago

A watch was on sale for 70% off. The sale price is $60. What was the original price?

Mathematics

1 answer:

ser-zykov [4K]3 years ago

5 0

Answer:

78 dollars

Step-by-step explanation:

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Eduardwww [97]

Answer:

X = -3. non-extraneous

Step-by-step explanation:

The given equation is $\frac{6}{x-3} =\frac{x}{3}$

We cross multiply to get:

$6*3=x(x-3)$

Expand and multiply.

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$x^2-3x-18=0$

We factor to obtain:

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Checking for extraneous solutions

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Step-by-step explanation:

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