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vichka [17]
2 years ago
13

Use multiplcation to solve the proportion. a/40 = 3/10​

Mathematics
1 answer:
max2010maxim [7]2 years ago
8 0

Answer:

a=12

Step-by-step explanation:

a/40=3/10

10 x 4=40, so

3 x 4=12

a=12

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Find the circumference of a circle whose area is 24
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The answer is: " 17.35 " .

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The area, "A", of a circle:

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__________________________________________

Given:

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________________

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→ r = 2.76281034802 ;

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= (6.28) * (2.76281034802) ;

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→ round to: " 17.35 units" .

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The answer is: " 17.35 " .

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→ The circumference of the circle is: " 17.35 units " .

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