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3 years ago

The larger of two numbers is 12 times the smaller number. if the sum of two numbers is 15,600, find the two numbers.

Mathematics

1 answer:

xeze [42]3 years ago

4 0

Answer:

Step-by-step explanation:

n - smaller number

The larger number is 12 times the smaller number

12n - larger number

n + 12n = 13n - the sum of these numbers

13n = 15600

÷13 ÷13

n = 1200

12n = 12•1200 = 14400

Check: 14400+1200 = 15600

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3 years ago

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2 years ago

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Gre4nikov [31]

Answer:

1. The correct answer is 46%

2. The correct answer is .07

3. The correct answer is (34%,58%)

4. The correct answer is (32%,60%)

Step-by-step explanation:

1. Let's calculate the percentage or proportion of patients that were dogs:

p = (7 + 4 + 5 + 5 + 2)/50 = 23/50 = 0.46

The correct answer is 46%

2. Let's estimate the standard error, using the given formula, this way:

S.e = √ (0.46 * 0.54)/50 = √0.049 = 0.07

The correct answer is .07

3. Let's calculate the confidence limits of the 90% confidence interval, this way:

Confidence limits = proportion +/- 1.645 * standard error

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The correct answer is (34%,58%)

4. Let's calculate the confidence limits of the 95% confidence interval, this way:

Confidence limits = proportion +/- 1.96 * standard error

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The correct answer is (32%,60%)

3 0

3 years ago

The larger of two numbers is 12 times the smaller number. if the sum of two numbers is 15,600, find the two numbers.​

The larger of two numbers is 12 times the smaller number. if the sum of two numbers is 15,600, find the two numbers.