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galben [10]
3 years ago
7

A radio is being discounted 20%.if the is sale of the radio is $51.44, what was the original price of the radio?

Mathematics
2 answers:
ehidna [41]3 years ago
6 0
     The Definition of Porcentage is given by:

p= \frac{V_{x}}{V_{t}}
 
     Where Vx is discounted value or increased, and Vt is total value. The discount decreases the "p" value.

p= \frac{V_{x}}{V_{t}} \\ \frac{(100-20)}{100V_{x}} = \frac{1}{V_{t}}  \\ V_{t}= \frac{51.44}{0.8}  \\ \boxed {V_{x}=64.3}

If you notice any mistake in my english, please let me know, because i am not native.
Grace [21]3 years ago
6 0
<span>51.44 ÷ 0.8 = 64.3

So the original price was $64.30</span>
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Please help I don't undestand
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By applying the law of sines and some algebraic handling, the length of the side LJ is approximately equal to 3.517 units. (Right choice: D)

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