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polet [3.4K]
3 years ago
12

a music store is having a clearance sale. all items are discounted by 30%. what is the sale price of a radio that regularly cost

s $50?
Mathematics
1 answer:
My name is Ann [436]3 years ago
6 0
Since the discount is 30%, then the sale is = 100% - 30% = 70% of the cost

= 70% of 50

= (70/100)  * 50

= 0.7 * 50 = 35

Therefore sale = $35
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Step-by-step explanation:

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from ΔABC, AC² = AB²+BC²

SInce AC = AD+DC and BC² = BD² + DC² (from ΔBDC )we will have;

(AD+DC)² = AB²+ (BD² + DC²)

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