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Ymorist [56]
2 years ago
14

220% of 18 help ???????

Mathematics
2 answers:
kvasek [131]2 years ago
8 0
220% of 18 is 39.6. Hope thishelps
solmaris [256]2 years ago
4 0
Just think 200% = 2x, so 2x of 18 = 36. Now for the 20%. Thats one fifth, so just do 18/5 and you have your answer when you add those together
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Twice one number is 15 less than a second number. when 13 is added to the second number,the result is 7 less than 9 times the fi
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Answer:

The width of billboard is "[x]" and the height of billboard is "[y"]. If total area of billboard is 9000 ft^2 then 9000=xy

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& y=\frac{9000}{x} \\  & A=(x-10)(y-6) \\  & A=xy-6x-10y+60 \\  & A=x\left( \frac{9000}{x} \right)-6x-10\left( \frac{9000}{x} \right)+60 \\  & A=9060-6x-\frac{9000}{x} \\

On taking the first order derivative of A

\[A'=-6+\left( \frac{90000}{{{x}^{2}}} \right)\]

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• Hence \[x=10\sqrt{150}\] and \[y=\frac{900}{\sqrt{150}}\]

Learn More about Differentiation Here:

brainly.com/question/13012860

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Step-by-step explanation:

Let's solve your equation step-by-step.

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Step 1: Simplify both sides of the equation.

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Step 2: Subtract 4 from both sides.

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