2 years ago

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Mathematics

1 answer:

rosijanka [135]2 years ago

5 0

Answer:

270 minutes.

Step-by-step explanation:

30d

d=9

30x9= 270

270 minutes.

plz mark me as brainliest. :)

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Will give crown thingy if right Can you find the area and circumference of a circle given the radius or diameter?

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Therefore it is possible to find the circumference and area of a circle if we are given the radius or diameter of the circle.

Step-by-step explanation:

i) to find the area of a circle or circumference the radius , r, is required.

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3x+9y=75<br>8x+5y=67 <br>what is x and y?

slava [35]

There are many ways to solve simultaneous linear equations. One of my favorite for finding integer solutions is graphing. The attached graph shows the solution to be ...

... (x, y) = (4, 7)

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You can also use Cramer's Rule, or the Vedic math variation of it, which tells you the solution to

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... x = (9·67-5·75)/(9·8-5·3) = 228/57 = 4

... y = (75·8-67·3)/57 = 399/57 = 7

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