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2 years ago

Do You Understand?Show Me! Explain howyou can use mental mathto add 10 to 47.

Mathematics

1 answer:

Nikitich [7]2 years ago

5 0

Answer:

Well the answer is 57.

Step-by-step explanation:

Okay think about it 10+10 is 20 how do you know this well 1+1=2 and add a zero. So in 10+47 4+1=5 and keep the 7 because the other number is a zero which has no affect on the number unless both numbers are zero.

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In a sample of n = 6 scores, 5 of the scores are each above the mean by one point. Where is the 6th score located relative to th

den301095 [7]

The mean of a dataset is the sum of all data elements divided by the count of the elements.

The location of the 6th score relative to the mean is 5 points below the mean

Let:

$\bar x \to$ Mean

$a \to$ 5 scores

$b \to$ 6th scores

Given that:

$n = 6$

The 5 scores that are 1 above the mean implies that:

$a = \bar x + 1$

The mean of a dataset is calculated using:

$\bar x = \frac{\sum x}{n}$

So, we have:

$\bar x =\frac{5a + b}{6}$

$\bar x =\frac{5(\bar x + 1) + b}{6}$

Open brackets

$\bar x =\frac{5\bar x + 5 + b}{6}$

Multiply both sides by 6

$6\bar x =5\bar x + 5 + b$

Make b the subject

$b = 6\bar x -5\bar x - 5$

$b = \bar x - 5$

This means that the 6th score is 5 points below the mean

Read more about mean at:

brainly.com/question/17060266

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2 years ago

Please help!! it’s overdue

Gnesinka [82]

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2 years ago

Thomas bought a bag of jelly beans that contained 10 red jelly beans, 15 blue jelly beans, and 12 green jelly beans. What is the

Hitman42 [59]

There are 37 jelly beans so p for the first one is 27/37. That leaves 36 in the bag. So p for the second jelly bean is 10/36=5/18.
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3 years ago

You deposit $5000 in an account earning 2% interest compounded monthly. How much will you have in the account in 10 years?

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Answer:

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Step-by-step explanation:

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If a person walks 1/2 a mile in each 1/4 hour, how far does he walk in 1 hour?

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Answer:

2 miles

Step-by-step explanation:

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2 years ago

Read 2 more answers

Do You Understand?Show Me! Explain howyou can use mental mathto add 10 to 47.​

Do You Understand?Show Me! Explain howyou can use mental mathto add 10 to 47.