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3 years ago

a market buys mixed nuts at $15 per round. They want to make a 20% profit. What would you pay for 1 pound of nuts.

Mathematics

1 answer:

Ymorist [56]3 years ago

5 0

Answer:

$18

Step-by-step explanation:

First you find out what 20% of $15 is:

0.20 * 15 = 3

Then you just add that to $15 to find out the total selling price:

$15 + $3 = $18

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165 liters of 15% solution

Step-by-step explanation:

15F + 65S = 60(1650)

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3 years ago

Viktor [21]

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Read 2 more answers

Find the angle between the vectors u=i-9j and v=8i+5j

Katyanochek1 [597]

Answer: $\cos^{-1} \left(\frac{-37}{\sqrt{7298}} \right) \approx 115.665^{\circ}$

Step-by-step explanation:

$u \cdot v=(1)(8)+(-9)(5)=-37\\\\|u|=\sqrt{1^{2}+(-9)^{2}}=\sqrt{82}\\\\|v|=\sqrt{8^{2}+5^{2}}=\sqrt{89}\\\\\cos \theta=\frac{-37}{\sqrt{82}\sqrt{89}}\\\\\theta=\cos^{-1} \left(\frac{-37}{\sqrt{82}\sqrt{89}} \right)\\\\\theta=\boxed{\cos^{-1} \left(\frac{-37}{\sqrt{7298}} \right) \approx 115.665^{\circ}}$

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2 years ago