One half times one third

Mathematics

1 answer:

Pie2 years ago

5 0

Answer:1/6

Step-by-step explanation:

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Could you please help solve 5.a and 5.b

Verdich [7]

Answer:

Step-by-step explanation:

5a = 240.96

5b = 20.08

7 0

3 years ago

Rubin has 6 rolls of pennies containing 50 coins each, 5 rolls of nickels

MArishka [77]

Answer:

C. $63.00

Step-by-step explanation:

$(6*50*0.01)+(5*40*0.05)+(4*50*0.10)+(3*40*0.25)=\\(300*0.01)+(200*0.05)+(200*0.10)+(120*0.25)=\\3+10+20+30=\\13+20+30=\\33+30=\\63$

He has C. $63.00.

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3 years ago

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There are two drains in a swimming pool. Drain A empties the pool ALONE in 4.75 hours. When both drains are on it takes 2.6 hour

cluponka [151]

Answer:

5.74 hours

Step-by-step explanation:

Please kindly check the attached files for explanation.

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3 years ago

A. How many non-degenerate scalene triangles with integer sides have a

Ierofanga [76]

Answer:

Hello,

a)18

Step-by-step explanation:

$p=27, int[p/2]=13\\\\\begin{array}{c|c|c|c|c}a&p-a&b&c\\---&---&---&---\\1&26&13&13\\2&25&12&13\\3&24&12&12\\4&23&10&13\\&&11&12\\5&22&9&13\\&&10&12\\&&11&11\\6&21&8&13\\&&9&12\\&&10&11\\7&20&7&13\\&&8&12\\&&9&11\\&&10&10\\8&19&8&11\\&&9&10\\9&18&9&9\\---&---&---&---\\\end{array}$

number of triangle=18

Side of the equilateral triangle =2

Height=√3 (using Pythagorean's theorem) (tr ACP)

Triangle ABJ has the same area as the triangle ABC

Uisng Thalès's theorem,

$\dfrac{2-v}{2}=\dfrac{v}{\sqrt{3} } \\\\\\v=\dfrac{2\sqrt{3} }{2+\sqrt{3} } \\\\\\v=\dfrac{2\sqrt{3}*(2-\sqrt{3}) }{1} } \\\\v=4\sqrt{3}-6\\\\v^2=84-48\sqrt{3} \\Area =a\sqrt{b}-c= \sqrt{3} -(84-48\sqrt{3} )=49\sqrt{3} -84\approx{0,87049...}\\\\So:\\b=3\\a=49\\c=84\\\\a+b+c=3+49+84=136\\$