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3 years ago

Three of these fractions are equivalent A.30/70 B.12/30 C.9/21 D.6/14 which one is the odd one out

Mathematics

2 answers:

Hatshy [7]3 years ago

5 0

Step-by-step explanation:

30/70 (divide by 10) is 3/7

12/30 (divide by 6) is 2/5

9/21 (divide by 3) is 3/7

6/14 (divide by 2) is 3/7

Hence 30/70, 9/21 and 6/14 are equivalent fractions

Therefore, the fraction 12/30 is the odd one out

Basile [38]3 years ago

5 0

Answer:

Step-by-step explanation:

$\frac{30}{70} =\frac{30:10}{70:10} =\frac{3}{7}\\\\\frac{9}{21} =\frac{9:3}{21:3} =\frac{3}{7}\\\\\frac{6}{14} =\frac{6:2}{14:2} =\frac{3}{7}$

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2 years ago

Read 2 more answers

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Answer:

95% confidence for µ, the average number of times a horse races

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Step-by-step explanation:

Explanation:-

The veterinarian finds that the average number of races a horse enters is 15.3

The mean of the sample x⁻ = 15.3

Given standard deviation of the sample 'S' = 6.8

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95% confidence for µ, the average number of times a horse races

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(15.3 - 2.80704 ,15.3 +2.80704)

(12.493 , 18.107)

Conclusion:-

95% confidence for µ, the average number of times a horse races

(12.493 , 18.107)

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2 years ago

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