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2 years ago

6

A greengrocer sells a melon at a profit of 37.5% on the price he pays for it. what is the ratio the cost price to the selling pr

ice?

1 answer:

strojnjashka [21]2 years ago

4 0

$\frac{100}{137.5} = \frac{1}{1.375}$ I simply divided by 100 and moved the decimal two places to the left.

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The circumference of the ellipse approximate. Which equation is the result of solving the formula of the circumference for b?

Serhud [2]

Answer:

$b = \sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}}$

Step-by-step explanation:

Given - The circumference of the ellipse approximated by $C = 2\pi \sqrt{\frac{a^{2} + b^{2} }{2} }$ where 2a and 2b are the lengths of 2 the axes of the ellipse.

To find - Which equation is the result of solving the formula of the circumference for b ?

Solution -

$C = 2\pi \sqrt{\frac{a^{2} + b^{2} }{2} }\\\frac{C}{2\pi } = \sqrt{\frac{a^{2} + b^{2} }{2} }$

Squaring Both sides, we get

$[\frac{C}{2\pi }]^{2} = [\sqrt{\frac{a^{2} + b^{2} }{2} }]^{2} \\\frac{C^{2} }{(2\pi)^{2} } = {\frac{a^{2} + b^{2} }{2} }\\2\frac{C^{2} }{4(\pi)^{2} } = {{a^{2} + b^{2} }$

$\frac{C^{2} }{2(\pi )^{2} } = a^{2} + b^{2} \\\frac{C^{2} }{2(\pi )^{2} } - a^{2} = b^{2} \\\sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}} = b$

∴ we get

$b = \sqrt{\frac{C^{2} }{2(\pi )^{2} } - a^{2}}$

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3 years ago

Otto used 6 cups of whole wheat flour and x cups of white flour in the recipe. What is the equation that can be used to find the

Rus_ich [418]

<span>Consider the equation 3p - 7 + p = 13. What is the resulting equation after the first step in the solution?</span>

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3 years ago

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A cylindrical container has a volume of 36 cm³. Another container made out of the same material is similar to the first containe

USPshnik [31]

I hope this helps you

Volume = pi.r^2.h

36= pi.r^2.h

Volume =pi.r^2.3/4h

Volume =pi.r^2.h.3/4

Volume =36.3/4

Volume =9.3

Volume =27

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3 years ago

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Please answer thank u i give brainliest to best answer

boyakko [2]

Answer:

A, B, C,

Step-by-step explanation:

Just use a calculator...?

a)

$2^-^2*2^8=\frac{1}{2^2}*2^8=\frac{2^8}{2^2}=2^8^-^6=2^6=64\\$

b)

$3^-^5*3^1=\frac{1}{3^5}*3=\frac{3}{243}=\frac{1}{81}$

c)

$4^4*4^-^3=\frac{4^4}{4^3}=4^1=4$

d)

$5^3*5^-^1=\frac{5^3}{5^1}=5^2=25$

e)

$6^-^8*6^-^6=\frac{6^6}{6^8}=6^-^2=\frac{1}{6^2}=\frac{1}{36}$

f)

$8^2*8^-^4=\frac{8^2}{8^4}=8^-^2=\frac{1}{8^2}=\frac{1}{64}$

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2 years ago

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What is the closest area of a circle of 50 centimeters

Nostrana [21]

The answer is 58282519265

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