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
FrozenT [24]
4 years ago
8

Rena spent 6 days reading her book completing the same fraction of the book each day if she had a total of 8/9 of her book after

6 days what fraction of the book did she react each day
Mathematics
1 answer:
Artyom0805 [142]4 years ago
3 0

Answer:

The fraction of the book that Rena read every day is \frac{4}{27}

Step-by-step explanation:

Rena spent 6 days reading her book completing the same fraction of the book every day and you want to know the fraction of the book she read each day. Knowing that Rena had a total of 8/9 of her book read after 6 days, then you simply divide the total amount of the book read during those days by 6, the number of days:  

\frac{8}{9}÷6

To divide a fraction by a whole number, you must convert the whole number into a fraction, finding the reciprocal of that fraction, and multiply it by the first fraction. That is, you must find the reciprocal of the number that is after the division symbol; and then you multiply the first number (the one before the division symbol) by the reciprocal of the second number (the one after the division symbol). Remember that to find the reciprocal of a number, you simply have to change the numerator and denominator of the number.

Since 6 can be considered to be a fraction equal to \frac{6}{1}, by inverting the number, then you get \frac{1}{6}

Then:

\frac{8}{9}÷6= \frac{8}{9} *\frac{1}{6}

Now you multiply the numerators and denominators of the fraction to get the new numerator and denominator of the final solution.

\frac{8}{9}÷6= \frac{8}{9} *\frac{1}{6}=\frac{8*1}{9*6} =\frac{8}{54}

Finally, simplifying the fraction:

\frac{8}{9}÷6= \frac{8}{9} *\frac{1}{6}=\frac{8*1}{9*6} =\frac{8}{54}=\frac{4}{27}

So:

\frac{8}{9}÷6= \frac{4}{27}

<u><em>The fraction of the book that Rena read every day is </em></u>\frac{4}{27}<u><em></em></u>

You might be interested in
Solve the system using elimination.<br> A. (2, 1)<br> B. (0, –2)<br> C. (–2, 0)<br> D. (1, 2)
stich3 [128]

Answer:b

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the variance of the following data. Round your answer to one decimal place. x 1 2 3 4 5 P(X=x) 0.3 0.2 0.2 0.1 0.2
Reptile [31]

The variance of a distribution is the square of the standard deviation

The variance of the data is 2.2

<h3>How to calculate the variance</h3>

Start by calculating the expected value using:

E(x) = \sum x* P(x)

So, we have:

E(x) = 1 * 0.3 + 2* 0.2 +3 * 0.2 + 4 * 0.1 + 5 * 0.2

This gives

E(x) = 2.7

Next, calculate E(x^2) using:

E(x^2) = \sum x^2* P(x)

So, we have:

E(x^2) = 1^2 * 0.3 + 2^2* 0.2 +3^2 * 0.2 + 4^2 * 0.1 + 5^2 * 0.2

E(x^2) = 9.5

The variance is then calculated as:

Var(x) = E(x^2) - (E(x))^2

So, we have:

Var(x) = 9.5 - 2.7^2

Var(x) = 2.21

Approximate

Var(x) = 2.2

Hence, the variance of the data is 2.2

Read more about variance at:

brainly.com/question/15858152

4 0
2 years ago
HELP PLEASE!!!!!!!!!!!! ITS DUE SOON
Bad White [126]

Use a factor tree to express 60 as a product of prime factors. So the prime factorization of 60 is 2 × 2 × 3 × 5, which can be written as 2 2 × 3 × 5. The actual prime factors of 60 are 2, 3, and 5.

7 0
3 years ago
F a gambler rolls two dice and gets the sum of 7, he wins $20. if he gets a sum of 4, he wins $40. the cost of playing is $14. w
DaniilM [7]
The expectation of this game is that the house (casino) takes in roughly $3.83 every time someone plays, and after enough plays, they will typically always win. 

We can determine this case by looking at all of the possibilities and how much you can win or lose off of each. There are 36 total cases for what can happen when we roll the dice. Of those 36 cases, 9 of them produce positive winnings and 27 of them produce losses. 

To calculate the winnings, we need to look at what type they are. 6 of them will be 7's which earn the gambler $20. 3 of them would be 4's, which earns the gambler $40. 

6($20) + 3($40) 
$120 + $120
$240

Then we look at the losses. This is easier to calculate since every time the gambler loses, he losses exactly $14. There are 27 of these instances. 

27($14) 
$378

Now we can look at the average loss per game by subtracting the losses from the gains and finding the average. 

(Winnings - losses)/options
($240 - 378)/36
$3.83
3 0
3 years ago
-inverse functions <br><br> Find the formula for f^-1(x):<br><br> F(x) = 3x^3 - 5
mamaluj [8]
<h2>Writing the Inverse of a Function</h2><h3>Answer:</h3>

f^{-1}(x) = \sqrt[3]{\frac{x +5}{3}}\\

<h3>Step-by-step explanation:</h3>

<em>Please refer to my Answer from this Questions to know more about Inverse Functions: <u>brainly.com/question/24619467</u></em>

Let y = f(x) so that the inverse of y is equal to f^{-1}(x).

Solving for f^{-1}(x):

f(x) = 3x^3 -5 \\ y = 3x^3 -5 \\ x = 3y^3 -5 \\ 3y^3 -5 = x \\ 3y^3 = x +5 \\ y^3 = \frac{x +5}{3} \\ y = \sqrt[3]{\frac{x +5}{3}}

Since the inverse of y is equal to f^{-1}(x), f^{-1}(x) = \sqrt[3]{\frac{x +5}{3}}\\.

3 0
3 years ago
Other questions:
  • 4 + 6(k + 6) =64 help I'm racking my brain!
    9·2 answers
  • The ——— states that you can add numbers in any order
    13·2 answers
  • Kim and ken are trying to earn at least $400 to buy a mountain bike. Kim earns $7 per hour as a youth counselor at camp. Ken ear
    9·1 answer
  • Juan was gifted a piggy bank for his birthday. He saves up $15 from his allowance in April, $23 in May, $31 in June and so on. H
    11·2 answers
  • Which of the given is irretional number? OPTIONS:A.)√256 B.)√225/576 C.)√3 D.)√9×16 .​
    6·1 answer
  • Okay, can someone private message me and help me with some math problems pleaseeeeeee????? Thank you!
    6·1 answer
  • Identify the reflection of the figure with vertices P(−11,−13), Q(−17,19), and R(23,−27) across the x-axis.
    5·1 answer
  • I WILL PICK BRAINLEIST!!!!!!!!! + 15 points
    6·1 answer
  • Given the replacement set {0, 1, 2, 3, 4), solve 7x-3 = 18.
    8·1 answer
  • What is the value of 3^0x3^4=? without any exponents.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!