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
Ms. Robinson gave her class 12 minutes to read. Carrie read 5 ½ pages in that time. At what rate, in pages per hour, did Carrie
9966 [12]

Answer:

27.5 pages read per hour

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Can somebody help me solve this?
Nookie1986 [14]

Answer:

z = 3.2 units

Step-by-step explanation:

sin 76°/z = sin 51°/2.6

cross-multiply to get:

z·(sin 51°) = 2.6·(sin 76°)

z = 2.6·(sin 76°) ÷ (sin 51°)

z = 3.2

3 0
3 years ago
Greg has 21 new magazines to read. Let M be the number of magazines he would have left to read after reading R of them. Write an
Rina8888 [55]

M = 21 - R is our equation. Plug your value of 12 into the equation for R.

M = 21 - 12.

M = 9.

Greg would have 9 magazines left after reading 12 of them

7 0
3 years ago
Can you put 150 177 205 163 172 190 186 168 155 in order
Eduardwww [97]
150, 155, 163, 168, 172, 177, 186, 190, 205
6 0
3 years ago
A wooden crate holds 48 pounds of bananas. The crate already has 15 pounds inside. Which inequality represents the solution set
Alexeev081 [22]

Answer:

48=15+x

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Find the value of x in the following figure.
    13·1 answer
  • Rewrite 27×15= vertically and solve
    8·2 answers
  • -2/55 divided by 4/33
    6·1 answer
  • a rectangle swimming pool is 4 ft deep. one side of the pool is 2.5 times longer than the other. the amount of water needed to f
    5·1 answer
  • Find a polynomial function that has the given zeros. (There are many correct answers.)<br> −4, 6
    8·1 answer
  • Which relation is a function?<br> A: a circle <br> B: a Y<br> C: a C<br> D: a line
    5·1 answer
  • Which property justifies this statement?
    15·2 answers
  • Question 2<br> Convert<br> 2227 cm =mm
    14·1 answer
  • What is the answer to this question in this photo
    11·2 answers
  • Given the following exponential function, identify whether the change represents
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!