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3 years ago

Select all ratios equivalent to 3:5. A) 24:40 B) 33:55 C) 4:6

Mathematics

2 answers:

Ksju [112]3 years ago

8 0

Answer:

A and B

Step-by-step explanation:

garik1379 [7]3 years ago

6 0

Answer: B and A

Step-by-step explanation:

B, because if you divide 33:55 by 11 it equals 3/5

A, becuase 14:40 divded by 8 equals 3:5

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NNADVOKAT [17]

Answer:

c = $5,400

Step-by-step explanation:

Given:

c = 0.9s

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Find c when she = $6,000

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2 years ago

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3 years ago

Suppose 40% of the students in a university are baseball players. If a sample of 781 students is selected, what is the probabili

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Answer:

$P(p>0.43) = 0.0436$

Step-by-step explanation:

Given

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$n = 781$ --- selected sample

Required

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First, calculate the z score using:

$Z = \frac{\^{p}-p}{\sqrt{\frac{p(1-p)}{n}}}$

This gives:

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Convert % to decimal

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.40 *(1 - 0.40)}{781}}}$

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.40 *0.60}{781}}}$

$Z = \frac{0.43-0.40}{\sqrt{\frac{0.24}{781}}}$

$Z = \frac{0.03}{\sqrt{0.00030729833}}$

$Z = \frac{0.03}{0.01752992669}$

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3 years ago

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Her error was that she misplaced the numbers

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3 years ago

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