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
jeka94
3 years ago
5

Jack read 1/6 of a book on Monday and another 1/3 of it on Tuesday. He took another 4 days to finish reading the book. He read t

he same number of pages on each of the 4 days.
What fraction of the book did he read on each of the 4 days?

If he read 40 pages on each of these 4 days, find the number of pages in the book.

Mathematics
2 answers:
joja [24]3 years ago
5 0
On each of the four days, jack read 1/8 of the book. 1/8 is 12.5 percent. if 12.5% is 40%, the a proportion can be set up to see the total number of pages which is 320

andre [41]3 years ago
4 0
1/3= 2/6...+1/6= 3/6 or 1/2 of the book. Now there is 1/2 left to read 40 pgs each day...160 pgs...160 is half the book. So 160*2= 320 total pages.
You might be interested in
What is a line graph?
scZoUnD [109]
A line graph, or line chart, shows info as a series of data points that are connected by line segments.
5 0
3 years ago
Use technology or a z-score table to answer the question.
Alik [6]

Answer:

The second choice: Approximately 65.2\% of the pretzel bags here will contain between 225 and 245 pretzels.

Step-by-step explanation:

This explanation uses a z-score table where each z entry has two decimal places.

Let \mu represent the mean of a normal distribution of variable X. Let \sigma be the standard deviation of the distribution. The z-score for the observation x would be:

\displaystyle z = \frac{x - \mu}{\sigma}.

In this question,

  • \mu = 240.
  • \sigma = 9.3.

Calculate the z-score for x_1 = 225 and x_2 = 245. Keep in mind that each entry in the z-score table here has two decimal places. Hence, round the results below so that each contains at least two decimal places.

\begin{aligned} z_1 &= \frac{x_1 - \mu}{\sigma} \\ &= \frac{225 - 240}{9.3} \approx -1.61\end{aligned}.

\begin{aligned} z_2 &= \frac{x_2 - \mu}{\sigma} \\ &= \frac{245 - 240}{9.3} \approx 0.54\end{aligned}.

The question is asking for the probability P(225 \le X \le 245) (where X is between two values.) In this case, that's the same as P(-1.61 \le Z \le 0.54).

Keep in mind that the probabilities on many z-table correspond to probability of P(Z \le z) (where Z is no greater than one value.) Therefore, apply the identity P(z_1 \le Z \le z_2) = P(Z \le z_2) - P(Z \le z_1) to rewrite P(-1.61 \le Z \le 0.54) as the difference between two probabilities:

P(-1.61 \le Z \le 0.54) = P(Z \le 0.54) - P(Z \le -1.61).

Look up the z-table for P(Z \le 0.54) and P(Z \le -1.61):

  • P(Z \le 0.54)\approx 0.70540.
  • P(Z \le -1.61) \approx 0.05370.

\begin{aligned}& P(225 \le X \le 245) \\ &= P\left(\frac{225 - 240}{9.3} \le Z \le \frac{245 - 240}{9.3}\right)\\&\approx P(-1.61 \le Z \le 0.54) \\ &= P(Z \le 0.54) - P(Z \le -1.61)\\ &\approx 0.70540 - 0.05370 \\& \approx 0.65.2 \\ &= 65.2\% \end{aligned}.

3 0
3 years ago
Write a polynomial function f of least degree that has a leading coefficient of 1 and given zeros 3, 2
kirill [66]
010101102837
01010110012
8 0
2 years ago
Find the measure of one interior angle of a regular 15-gon.
Nataliya [291]

Answer:

156*

Step-by-step explanation:

6 0
1 year ago
Rebah and her twin brother are planning a birthday party at Pizza Pete's. There is a S64.75 charge to reserve a party room plus
Digiron [165]

Answer:

22 people

Step-by-step explanation:

Step 1: I first subtracted $64.75 from $175.00 so that I knew how much would be leftover after the charge of the room, because you can't count that cost. When I did this, I got $110.25. So then I knew how much was paid other then for the room.

Step 2: I then divided $110.25 by $4.95, so I would get the amount of people who went to the party, since each person costs $4.95. When I divided, I got 22.

So that would be my answer. I hope that helps. :)

7 0
2 years ago
Other questions:
  • Julia bought 3 1/4 yards of fabric . How many 1/4 yards did she buy?
    10·1 answer
  • What is the slope of the line threw (-9,6) and (-3, 9)
    10·2 answers
  • Which of the following stanements shows the inverse property of addition?
    15·1 answer
  • The land area of a country is about 5.0 million square​ miles, and the population is about 600 million people. What is the avera
    8·1 answer
  • Neeed help pls. Find the measure of each side indicated. Round to nearest tenth. Pls help
    6·1 answer
  • What is the product of 40 and 7?
    8·1 answer
  • The Serenity and the Mystic are sailboats. The Serenity and the Mystic start at the same point and travel away from each other i
    13·1 answer
  • Shjdksjcksmcjcsnuckamc
    11·2 answers
  • Janna works at a lab with a huge circular particle accelerator. It has a radius of 4 kilometers. What is the accelerator's diame
    6·1 answer
  • Parker has $2,500 in her bank account that earns 3.8% interest annually. How much money will she have in her bank account after
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!