Does anyone know what 0.83 the 83 repeats

Answers

Answer 1

Answer: $x=0.\overline{83}\n100x=83.\overline{83}\n100x-x=83.\overline{83}-0.\overline{83}\n99x=83\nx=(83)/(99)$

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How to do these problems

Translate the phrase into a math expression. 12 less than twice a number

A.
2 · (n – 12)

B.
2 · n - 12

C.
2 · n ÷ 12

D.
12 – 2 · n

Answers

The answer is B

Twice a number means 2 times a number n, which would be 2n

And 12 subtracted from 2n would be 2n - 12

Hope that helps :)

12 less than twice a number

Twice a number would be 2n

12 less than 2n would be 2n - 12

Your answer is B.

Pls helpYolanda has finished 45% of the homework problems she was assigned. So far she has finished 27 problems.

A. Write 45% as a rate per 100 and then reduce the fraction to lowest terms.

B. How many problems was Yolanda assigned? Justify your answer.

C. How many problems does Yolanda still have to do? Show your work.

Answers

A. 45/100 = 9/20
B. 9/20 = 27/x
9x=540
x = 6
She was assigned 60 problems (showing your work is practically justification in its on right)
C. 60-27
Yolanda still has 33 problems to do.
Hope this helped

Simplify 5/8-(-7/2)

Answers

Answer:

33/8

see the pic for the steps

5/8 - (-28/8) = -23/8

Solve the system of equations: x – 4y = –8 and –3x + 12y = 24. A. (–4, 1)
B. (0, 2)
C. There are an infinite number of solutions.
D. There's no solution.

Answers

Answer:

C. There are an infinite number of solutions.

Step-by-step explanation:

$\left\{\begin{array}{ccc}x-4y=-8\n-3x+12y=24&\text{divide both sides by 3}\end{array}\right\n\underline{+\left\{\begin{array}{ccc}x-4y=-8\n-x+4y=8\end{array}\right}\qquad\text{add both sides of the equations}\n.\qquad\qquad0=0\qquad\bold{TRUE}$

It should be C
Because when u multiply ( -3)*(x-4y= -8)

It’ll equal to -3x+12y=24 which is the same equation to the other one.
When the equations r the same, it means everything on the line is the solution for this system of equation.

PLEASE HELP!Which of these statements is true for f(x)=(9/10)^x?A. the range of f(x) is y>9/10
B. The y-intercept is (0, 1).
C. It is always increasing.
D. The domain of f(x) is x>0