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3 years ago

The larger of two numbers is 15 more than the smaller number. If the sum of the number is 45, find the number

Mathematics

1 answer:

katrin2010 [14]3 years ago

7 0

x+y=45 and x=y+15

Therefore, x is 30 and y is 15

x is greater than y by 15, and their sum in 45.

The larger number is 30 and the smaller number is 15.

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Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

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4 years ago

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Let $\hat p$ = sample proportion

The z score probability distribution for sample proportion is given by;

Z = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion

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Now, the probability that the sample proportion will be less than 0.05 is given by = P( $\hat p$ < 0.05)

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The above probability is calculated by looking at the value of x = 0.86 from the z table which has an area of 0.80511.

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