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3 years ago

Using the common denominator of 56, what is an equivalent fraction for 3/8 and 3/7?

Mathematics

1 answer:

anyanavicka [17]3 years ago

5 0

Answer: $\frac{3}{8}$ = $\frac{21}{56}$ $\frac{3}{7}$ = $\frac{24}{56}$

Step-by-step explanation:

In order to get from 8 to 56, we have to multiply by 7.

We always do the same to the top! 3 multiplied by 7 = 21.

In order to get from 7 to 56, we have to multiply by 8.

We always do the same to the top! 3 multiplied by 8 = 24.

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3 years ago

Alma is estimating the proportion of students in her school district who, in the past month, read at least 1 book. From a random

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Answer:

$(0.64 +1.645 \sqrt{\frac{0.64(0.36)}{50} })$

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Step-by-step explanation:

Step:-1

Given that the random sample size 'n' = 50

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$p^{-} = \frac{32}{50} = 0.64$

90 percent confidence interval for the proportion of all students in her district who read at least 1 book last month

$(p^{-} - Z_{0.90} \sqrt{\frac{p(1-p)}{n}, } , p^{-} +Z_{0.90} \sqrt{\frac{p(1-p)}{n} })$

Step(ii):-

Level of significance = 0.90

Z₀.₉₀ = 1.645

$(0.64 - 1.645 \sqrt{\frac{0.64(1-0.64)}{50}, } , 0.64 +1.645 \sqrt{\frac{0.64(1-0.64)}{50} })$

$(0.64 - 1.645 \sqrt{\frac{0.64(0.36)}{50}, } , 0.64 +1.645 \sqrt{\frac{0.64(0.36)}{50} })$

(0.64 -1.645(0.06788) , (0.64 + 1.645(0.06788)

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Final answer:-

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Using the common​ denominator of 56, what is an equivalent fraction for 3/8 and 3/7?

Using the common denominator of 56, what is an equivalent fraction for 3/8 and 3/7?