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raketka [301]
2 years ago
9

Find the area of a circle with diameter, d = 6.2m. Give your answer rounded to 1 DP.

Mathematics
1 answer:
astraxan [27]2 years ago
3 0

Answer:

3.14(3.1)^2 = 30.1754

Step-by-step explanation:

pi times radius squared - area of a circle

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A sum of money is divided amongst Farah, Shaiyara and Zahin in the ratio 10: 7: 5. If
r-ruslan [8.4K]

Answers:

  • Total amount of money =  220 dollars
  • Amount Farah gets = 100 dollars

==========================================================

Explanation:

  • F = amount Farah gets
  • S = amount Shaiyara gets
  • Z = amount Zahin gets

The money is divided in the ratio 10:7:5

This means that

  • F = 10x
  • S = 7x
  • Z = 5x

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S = Z+20

Let's plug in S = 7x and Z = 5x and solve for x

S = Z+20

7x = 5x+20

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2x = 20

x = 20/2

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Therefore,

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  • S = 7x = 7*10 = 70
  • Z = 5x = 5*10 = 50

The ratio F:S:Z becomes 100:70:50 which reduces fully to 10:7:5 after dividing all three parts by the GCF 10.

The total sum of money shared is 100+70+50 = 220 dollars and Farah gets $100 of that total.

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