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Leno4ka [110]
4 years ago
14

Ray bought 5 lemons and 3 limes for $7.20. Lia bought 4 lemons and 6 limes for the same price. How much would it cost to buy 1 l

emon and 1 lime?

Mathematics
1 answer:
kolezko [41]4 years ago
5 0

Answer:

$1.60

Step-by-step explanation:

Please see the attached pictures for full solution.

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Use a half-angle identity to find the exact value
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Given:

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To find:

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Using the trigonometric identity: \cos \left(30^{\circ}\right)=\frac{\sqrt{3}}{2}

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Using fraction rule: \frac{\frac{a}{b} }{c}=\frac{a}{b \cdot c}

            $=\sqrt{\frac {2+\sqrt{3}}{4}}

Apply radical rule: \sqrt[n]{\frac{a}{b}}=\frac{\sqrt[n]{a}}{\sqrt[n]{b}}

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Using \sqrt{4} =2:

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answer
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