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2 years ago

One third of a number and 5 is 20

1 answer:

8 0

1/3 of (x mulltiplied by 5) = 20. 1 * x * 5 all divided by 3 = 20 5/3x = 20 x = 20 * 3/5 x = 12 therefore the number == 60. I hope i was able to help u

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I WILL GIVE BRAINLIEST By what percent will the product of two numbers change if one of them increased by 20% and the other decr

Setler [38]

Answer:

Assume that the number is 100. Then, 20% of 100 is 20×100100 = 20. Increasing 100 by 20% means increasing 100 by 20 and the resultant number is 120.

5 0

2 years ago

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The weight of people in a small town in Missouri is known to be normally distributed with a mean of 186 pounds and a standard de

OleMash [197]

Answer:

the probability that a random sample of 17 persons will exceed the weight limit of 3,417 pounds is 0.0166

Step-by-step explanation:

The summary of the given statistical data set are:

Sample Mean = 186

Standard deviation = 29

Maximum capacity 3,417 pounds or 17 persons.

sample size = 17

population mean =3417

The objective is to determine the probability that a random sample of 17 persons will exceed the weight limit of 3,417 pounds

In order to do that;

Let assume X to be the random variable that follows the normal distribution;

where;

Mean $\mu$ = 186 × 17 = 3162

Standard deviation = $29* \sqrt{17}$

Standard deviation = 119.57

$P(X>3417) = P(\dfrac{X - \mu}{\sigma}>\dfrac{X - \mu}{\sigma})$

$P(X>3417) = P(\dfrac{3417 - \mu}{\sigma}>\dfrac{3417 - 3162}{119.57})$

$P(X>3417) = P(Z>\dfrac{255}{119.57})$

$P(X>3417) = P(Z>2.133)$

$P(X>3417) =1- 0.9834$

$P(X>3417) =0.0166$

Therefore; the probability that a random sample of 17 persons will exceed the weight limit of 3,417 pounds is 0.0166

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2 years ago

Consider the statement: 4 - 3 + 5 = -6 + 8 + 4. This is a mathematically correct sentence.

Natasha_Volkova [10]

Yes that is correct because 4-3 plus 5 is 6 and -6 +8+4 is 6 soo dont stress your self out..Lol

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2 years ago

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Compare the numbers 5.0 and 0.5. How many times 0.5 is 5?

o-na [289]

To do this divide 5.0 by 0.5. Move the decimal one place to the right. Now do the division. It gives you 10.

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3 years ago

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16. Janet's middle school begins at 8:00 AM. The bus

Mama L [17]

Answer:

7:05 is the answer to your question

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2 years ago