Rewrite as a simplified fraction 1.6 <-- repeating=?

Answers

Answer 1

Answer: $1.6666...=1.\overline{6}=1.(6)\n\nx=1.6666...\ \ \ |multiply\ both\ sides\ by\ 10\n10x=16.6666...\n\n10x-x=16.6666...-1.6666...\n9x=15\ \ \ \ |divide\ both\ sides\ by\ 9\n\nx=(15)/(9)\n\n\boxed{x=1(6)/(9)}\n\nsimplify\n\nx=1(6:3)/(9:3)=\boxed{1(2)/(3)}$

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Melissa’s birthday is next week and she has been receiving cards in the mail with different amounts of money. She has received 5 cards with the following amounts: $10, $20, $ 25, $30, $40. If Melissa receives one more card in the mail with $25, which of the following will happen?

Answers

We have to choose an answer that best describes what will happen with the standard deviation. First we have to calculate the Mean without last $25. Mean 1= ( 10 + 20 + 25 + 30 + 40 ) / 5 = 25. Standard deviation: SD 1 = sqrt( ( 225 + 25 + 0 + 25 + 225 ) / 5 ) = sqrt ( 500/5 ) = sqrt ( 100 ) = 10. Then we have to calculcate the Mean with additional $25 : Mean 2 = ( 10 + 20 + 25 + 30 + 40 + 25 ) / 6 = 25 ( same again ). The new Standard Deviation: SD 2 = sqrt ( ( 225 + 25 + 0 + 25 +225 + 0 ) / 6 ) = sqrt( 500 / 6 ) = sqrt ( 83.33 9 = 9.13. 9.13 < 10. Answer: The standard deviation A ) Decreases.

Answer:

a and b

Step-by-step explanation:

its right

What is 2346*5688? Then you have to divide it by 2

Answers

The answer would be 6672024

so you multiple it and then divide by 2

6,672,024

Using 6 as one of the numbers, write a fact family with only two facts.

Answers

These examples of a fact family with only two facts are 6 x 2 = 12, and 12 ÷ 2 = 6 using the number 6.

What is the number system?

A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9.

In a fact family, there are three related math facts that share the same three numbers. In this case, the three numbers are 6, 2, and 12. The two facts are related to each other through the property of inverse operation of multiplication and division where the product of two numbers is 12 and the quotient of 12 and 2 is 6.

6 x 2 = 12

12 ÷ 2 = 6

This is an example of a fact family with only two facts, using the number 6. The first fact is 6 is multiplied by 2, which equals 12. The second fact is 12 is divided by 2, which also equals 6.

Learn more about the number system here:

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6 = 2 * 3
6 = 1 * 6

I think thats what you're looking for.

A submarine is at 756 feet.How many feet will it need to rise to be at the suface

Answers

It needs to rise 756 feet...

0 is at the surface.... The submarine is 756 feet down. So, to get to the surface it needs to go up 756 to reach 0.

Its simple intigers its -756 so to go to 0 witch is surface it needs to add or rise 756 to rise to surface

Every Wednesday, Carla runs 2.5 miles. How many feet did she run? I have no idea how to do this.

Answers

Answer: Carla ran 13,200 feet.

Step-by-step explanation:

Hi, to answer this question we have to know that each mile has 5,280 feet.

So, to calculate how many feet did she run we have to multiply the distance in miles (2.5) by 5,280 (feet in one mile).

Mathematically speaking:

2.5 miles x 5,280 f/miles = 13,200 feet

Carla ran 13,200 feet.

Feel free to ask for more if it´s necessary or if you did not understand something.

for every mile that's 5280 ft, so 2.5 miles would equal to 13200 ft.

If the pacific ocean is represented by the square with 3 cm sides what is the area of this square

Answers

9 because a squre has equal sizes and area is leignth times width and 3 x 3= 9

To find area you multiply length times width because you have a 3cm square the length is 3cm and the width is 3cm so 3 x 3 = 9 so the area is 9cm²

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