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earnstyle [38]
3 years ago
9

What is 7/11 as a decimal? Must show work!!! PLEASE HELP

Mathematics
2 answers:
zzz [600]3 years ago
8 0

Answer:

0.63 recurring    ( the 63 recurs without bounds).

Step-by-step explanation:

Dividing 7 by 11:

11)  7.0000000 ( 0.6363....

     0.6

         40

         33

            70

            66

               40

               33

   

Elenna [48]3 years ago
3 0

Step-by-step explanation: To write 7/11 as a decimal, it's important to understand that the bar that separates the numerator and the denominator of the fraction can be thought of as division.

So we can think of 7/11 as 7 ÷ 11.

7 divided by 11 gives us 0.63636363636 repeating which means that 7/11 can be written as the decimal 0.63636363636 repeating.

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What is the solution to the system of equations?
Trava [24]

Call the two equations above A and B, in order to not confuse them.

A: -2x + 6y = -38

B: 3x - 4y = 32

For this system we have opposites in x and y, so Elimination (or Linear Combination) works best. Either variable works, so let's work with x first and multiply A by 3 and B by 2. This is done so we get opposites in A and B then when added together give zero.

-2x + 6y = -38 ------> multiply by 3 ----> -6x + 18y = -114

3x - 4y = 32 ------> multiply by 2 -----> 6x - 8y = 64

Now we add the new equations. The -6x and 6x are opposites and go away. We are left with

10y = -50. We divide both sides by 10 and get that y = -5.

Now we take y = -5 and put it into an original equation. Let's use A.

-2x + 6y = -38 the original equation A

-2x + 6(-5) = -38 we found y = -5

-2x + (-30) = -38 evaluating and multiplying

-2x - 30 = -38 apply the parentheses

-2x = -8 add 30 to both sides

x = 4 divide on both sides by -2


Thus x = 4 and y = -5, or (4, -5) is the solution.

6 0
3 years ago
Read 2 more answers
Barbara saw a drill marked $28 this was 87.5% of the original price what was the original price
ch4aika [34]

Let x be the original price,

\dfrac{28}{x} = .875

x = \dfrac{28}{.875} = 32

Answer: $32

7 0
3 years ago
Read 2 more answers
Which of the following is a perfect square trinomial?
Snowcat [4.5K]

Answer:

x^2-5x+6\\(x-3)(x-2)

x^2-3x+4\\(x-4)(x+1)

x^2+20x+100\\(x+10)(x+10)\\(x+10)^2

That's the answer

x^2+14x-49\\x(x+14)-49

Only x^2+20x+100 is a perfect square trinomial

3 0
3 years ago
A restaurant's delivery person can determine the number of miles he can drive in x hours by the function f (x) = x2 + 3x. The nu
slavikrds [6]

The delivery person will use 6 gallons of gasoline

The function to determine the number of miles in x hours is:

f(x)  =  x²  +  3x

The number of gallons of gasoline used for driving y miles is:

g(y) = y/18

For a delivery person that works a 9-hour shift:

x  =  9

f(9)  =  9²  +  3(9)

f(9)  =  81  +  27

f(9)  =  108

That is, the number of miles, y = 108 miles

The number of gallons of gasoline used:

g(y)  =  y/18

g(108)  =  108/18

g(108)  =  6

The delivery person will use 6 gallons of gasoline

Learn more here: brainly.com/question/16155213

4 0
2 years ago
I NEED A DETAILED EXPLANATION OF HOW TO SOLVE THIS PLEASE OR JUST THE FORMULA
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Answer:

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Step-by-step explanation:

5 0
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