1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
labwork [276]
3 years ago
5

What is 1.21 repeating as a fraction?

Mathematics
2 answers:
DochEvi [55]3 years ago
6 0
x=1.\overline{21}\\
100x=121.\overline{21}\\
100x-x=121.\overline{21}-1.\overline{21}\\
99x=120\\
x=\dfrac{120}{99}=\dfrac{40}{33}
Dmitrij [34]3 years ago
4 0

Answer: 1.\bar{21}=\frac{40}{33}

Step-by-step explanation:

Since we have given that

1.\bar{21}

Let x = 1.\bar{21} --------------(1)

Multiplying by 100 on both the sides:

100x=121.\bar{21}---------------(2)

Subtracting (1) from (2), we get,

100x-x=121.\bar{21}-1.\bar{21}\\\\99x=120\\\\x=\frac{120}{99}\\\\x=\frac{40}{33}

Hence, 1.\bar{21}=\frac{40}{33}

You might be interested in
99 X 99 X 99 / 9 - 99 /99 PLEASE EXPLAIN ;)
charle [14.2K]

Answer:

107810

Step-by-step explanation:

You can use the order of operations! So we start with 99^3/9. That is 99^2*11. So now let’s do 99/99, it’s 1. So 99^2*11 is 107811, so the answer is 107810.

8 0
3 years ago
Read 2 more answers
For the relation S:{(2,3),(−1,4), (1,6)}. a Find the domain. B. Find range
Rudik [331]

Answer:

domain: {2, -1, 1}

range: {3, 4 6}

Step-by-step explanation:

In the relation of the form (x,y)

Set of all possible value of X is called Domain

Set of all possible value of Y is called  Range

To get a list of domain and range it is required to separate value of x and y

_________________________________

Relation given in the problem

S:{(2,3),(−1,4), (1,6)}

domain: {2, -1, 1}

range: {3, 4 6}

8 0
3 years ago
Sean invests $10,000 at an annual rate of 5% compounded continuously, according to the
tatiyna

Answer:

if you have a pic of question send it plz then will give answer

Step-by-step explanation:

7 0
3 years ago
Hi can you guys help me. The topic is similiar shapes in this case triangles do you guys know how to find a length. I got some p
Airida [17]

PR=18mm
AB=7mm

All lengths of triangle PRQ are twice the lengths of ACB





4 0
3 years ago
Can someone help me? I'll reward points and brainalist
UNO [17]

Answer:

135 degrees

Step-by-step explanation:

45 is for half of the square so u would add 45+45+45 or 45x3. there is a half and 1 whole square.

7 0
3 years ago
Read 2 more answers
Other questions:
  • A frame of width a surrounds a 5 by 7 inch photograph. Find the expression that represents the area of the frame in terms of a.
    9·1 answer
  • If two segments have the same length then they are?
    12·2 answers
  • From their location in the diagram, what are two possible values for m and n?
    13·1 answer
  • A smartphone costs ​$120. Sales tax is 5​%. What is the total​ cost, including​ tax?
    14·1 answer
  • How do you collect and distribute this?
    9·1 answer
  • Is the sum of √16 and 1.5 rational or irrational?" Justify and explain your answer.
    15·1 answer
  • Jennifer $12 to spend on lunch and roller rink. Admission to the roller rink is $5.75 Jennifer estimates that she can buy a larg
    11·2 answers
  • What is 2+2+2+22+2+2+22+2+2+22+2+2+22+2+2+22+2+2+22+2+2+2
    12·2 answers
  • A cube with a surface area of 24 square centimeters is shown.
    6·1 answer
  • Pls answer this ASAP
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!