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
Anon25 [30]
3 years ago
12

Will someone plz help me this us due and I am confused

Mathematics
1 answer:
mihalych1998 [28]3 years ago
7 0

Hey there! I would love to help you.

Question 1: In both questions, we have to find the repeating decimal as a fraction. There is a specific way to find the fraction given a repeated decimal. In our equation, our variable x will represent the fraction.

x=0.272727....

If you know how too solve systems of equations by elimination, we need to to do something similar to eliminate all of the repeating parts so we can solve for x.

We need to make this a number greater than zero but line up the digits so that we can eliminate every single repeating digit.

To do this, we move the digit as many times to the right as there are digits that repeat. In this case, there are two repeating digits, so we multiply the whole equation by 100.

100x=27.2727...

Now, we can subtract the first equation from the second  so that the repeating parts are removed and we can then solve for x and find our fraction.

99x=27

Now, we solve for x.

x=27/99

Now we subtract this from the first fraction.

11/6-27/99= 1 37/66

To make this into a repeating decimal, we just divide the numerator by the denominator.

1.560606060...

As we can see, the 60 is repeating, so the answer is the second option on the first one.

Question 2: In this case, we have two repeating decimals. Let's solve for them both. Because we have a digit after the decimal that does not repeat, we need to move it before we subtract.

10x=4.090909...

We need to line up the decimals, and in this case we need to multiply by 1000.

990x=409.090909...

Now we subtract...

990x=405

We solve...

x=9/22

Now we do the other one.

10x=6.81818181...

We multiply by 100 to line up the decimals for subtraction.

1000x=681.8181....

We subtract...

990x=675

x=15/22

Now, we add our fractions.

24/22 or 1 2/22

Now we turn it back into a repeating.

24/22= 1.09090909...

For this question, select the second option.

I hope this helps!

You might be interested in
5. Which of the following is a
katrin [286]
D because it is the right value in order
8 0
3 years ago
Two dice are rolled, find the probability that the sum is less than 13
Alex777 [14]
100% of the rolls would be less than 13. The highest number on one die is 6, so even if you roll 2 dice the sum of both dice will always be lower than 13.
It's a 1:1 probablility.
7 0
3 years ago
Write the standard equation for the circle center (-6,8) that passes through (0,0)
Reil [10]

Answer:

D

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (- 6, - 8), thus

(x + 6)² + (y + 8)² = r²

The radius is the distance from the centre to a point on the circle

Calculate r using the distance formula

r = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 6, - 8) and (x₂, y₂ ) = (0, 0)

r = \sqrt{(0+6)^2+(0+8)^2} = \sqrt{36+64} = \sqrt{100} = 10

Hence

(x + 6)² + (y + 8)² = 100 → D

4 0
3 years ago
Anya’s team won 5 out of every 7 games this season.
spin [16.1K]

Answer:

20 out of 28 games.

Step-by-step explanation:

28 divided by 7 is 4.

5 times 4 is 20.

20 out of 28 games.

(This is simple math honestly.)

7 0
2 years ago
Can someone plz help :( I need help asap
erastovalidia [21]

Answer:

x=120, y=160. and is that u in ur pfp

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the Perimeter of JKL?
    7·2 answers
  • A Company increased the number of its employees from 340 to 425. Find the percent increase.
    9·1 answer
  • Can someone help me real quick please?
    5·1 answer
  • Estimate the sun by round each number to the nearest whole number?<br><br> 1.78+4.25
    8·2 answers
  • David writes down the sequence 2, 6, 10, 14<br><br>he says the sequence is n+4 <br><br>is he correct
    15·2 answers
  • I need help with this!!!!
    12·2 answers
  • PLS HELP- ill do 15 points T-T MATH
    11·1 answer
  • Help extra points really important to me ​
    5·2 answers
  • Find the measure of angle G<br><br> Help ASAP
    9·1 answer
  • 9 - (-8) • 3<br> Order of Operations
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!