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2 years ago

Simplest form of 4500:80000 and 8100:144000

Mathematics

1 answer:

a_sh-v [17]2 years ago

3 0

9514 1404 393

Answer:

9/160
9/160

Step-by-step explanation:

Divide each number in the ratio by their greatest common divisor.

4500 : 80000 = (4500/500) : (80000/500) = 9 : 160

8100 : 144000 = (8100/900) : (144000/900) = 9 : 160

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The area of the circle is 144π m2<br><br> What is the diameter of the circle?

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Answer:

Step-by-step explanation:

Remember that

Area of Circle = $\pi r^2$

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They told us that for this circle, the area is $144\pi m^2$

If you put it back into the formula for area of a circle we get:

Area of Circle = $\pi r^2$

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Divide both sides by $\pi$ .

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Now we want to solve for r (r = radius).

You need to square root each side

$\sqrt{144} = \sqrt{r^2}$

$12 = r$

So now we know the radius, $r = 12$ metres

Also remember that

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So,

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Simplest form of 4500:80000 and 8100:144000​

Simplest form of 4500:80000 and 8100:144000