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arsen [322]
3 years ago
7

Ratios:Question 4

Mathematics
1 answer:
Valentin [98]3 years ago
4 0

Answer:

75 boys

Step-by-step explanation:

Formula-Girls:Boys=Girls:Boys

5:6=_:90

90×5=450

450÷6=75

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Find the value of x if y =1/4x and 5x-8y=33​
Verdich [7]

Answer:

x=11

Step-by-step explanation:

y= 1/4x

5x-8y=33

5x-8(1/4x)=33

x=11

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3 years ago
15 one half subtracted by 3 wholes and seventh eights
FromTheMoon [43]
15 and one half is 31/2. 3 and seven eighths is 31/8. 31/2 also equals 124/8. Then the answer is 124/8 - 31/8 is 91/8. Hope that helped.
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The diameter of a circle is 14 in. Find its area in terms of <br> π<br> π.
maksim [4K]

Answer:

49π in²

Step-by-step explanation:

Step 1: Find the radius.

  • To find radius given diameter, just divide the diameter by 2: \frac{14}{2}
  • 14/2 = 7, so the radius is 7.

Step 2: Apply area of circle formula.

  • The formula to find the area of a circle is πr², where r = radius.
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Step 3: Simplify.

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Since we're finding the area in terms of pi, we don't have to multiply 121 by pi, so the answer is 49π in².

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vesna_86 [32]

Answer:

3 and 5/16

Step-by-step explanation:

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How many times does forty-two go into eight hundred twenty?
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820 divided by 42 is 19.52 times
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