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
trasher [3.6K]
3 years ago
10

Por motivo de la victoria de Colombia contra Brasil en las eliminatorias 2022, una panadería preparó un pastel: Vendieron 2/5 y

obsequiaron 1/3 ¿Qué cantidad de pastel quedó?
Mathematics
1 answer:
Marizza181 [45]3 years ago
6 0

Answer:

the cake that was left is 1 by 15

Step-by-step explanation:

The computation is shown below:

= sale - gave away

= \frac{2}{5} - \frac{1}{3}\\\\= \frac{6 - 5}{15}   \\\\= \frac{1}{15}

Hence, the cake that was left is 1 by 15

So the same is relevant and considered too

You might be interested in
Each day a cashier counts the number of pennies left in the "take a penny, leave a penny" dish. Estimate the probability that th
jeka94

Answer:

B.4/11

Step-by-step explanation:

hope it helps

consider making my answer as BRAINLIST

7 0
3 years ago
How much would $400 invested at 9% interest compounded continuously be worth after 3 years? Round your answer to the nearest cen
adell [148]
<span>In 3 years, you will have $523.97 
</span><span>continuously = daily</span>
3 0
3 years ago
Read 2 more answers
Location is known to affect the number, of a particular item, sold by an auto parts facility. Two different locations, A and B,
Mama L [17]

We have two samples, A and B, so we need to construct a 2 Samp T Int using this formula:

  • \displaystyle \overline {x}_1 - \overline {x}_2 \ \pm \ t^{*} \sqrt{\frac{s_1^2}{n_1} + \frac{s_2^2}{n_2}  }  

In order to use t*, we need to check conditions for using a t-distribution first.

  • Random for both samples -- NOT STATED in the problem ∴ <u><em>proceed with caution</em></u>!
  • Independence for both samples: 130 < all items sold at Location A; 180 < all items sold at Location B -- we can reasonably assume this is true
  • Normality: CLT is not met; <u>n < 30</u> for both locations A and B ∴ <u><em>proceed with caution</em></u>!

<u>Since 2/3 conditions aren't met, we can still proceed with the problem but keep in mind that the results will not be as accurate until more data is collected or more information is given in the problem.</u>

<u>Solve for t*:</u>

<u></u>

We need the <u>tail area </u>first.

  • \displaystyle \frac{1-.9}{2}= .05

Next we need the <u>degree of freedom</u>.

The degree of freedom can be found by subtracting the degree of freedom for A and B.

The general formula is df = n - 1.

  • df for A: 13 - 1 = 12
  • df for B: 18 - 1 = 17
  • df for A - B: |12 - 17| = 5

Use a calculator or a t-table to find the corresponding <u>t-score for df = 5 and tail area = .05</u>.

  • t* = -2.015

Now we can use the formula at the very top to construct a confidence interval for two sample means.

  • \overline {x}_A=39
  • s_A=8
  • n_A=13
  • \overline {x}_B = 55
  • s_B=2
  • n_B=18
  • t^{*}=-2.015

Substitute the variables into the formula: \displaystyle \overline {x}_1 - \overline {x}_2 \ \pm \ t^{*} \sqrt{\frac{s_1^2}{n_1} + \frac{s_2^2}{n_2}  }.

  • 39-55 \  \pm \ -2.015 \big{(}\sqrt{\frac{(8)^2}{13} +\frac{(2)^2}{18} } } \ \big{)}

Simplify this expression.

  • -16 \ \pm \ -2.015 (\sqrt{5.1453} \ )
  • -16 \ \pm \ 3.73139

Adding and subtracting 3.73139 to and from -16 gives us a confidence interval of:

  • (-20.5707,-11.4293)

If we want to <u>interpret</u> the confidence interval of (-20.5707, -11.4293), we can say...

<u><em>We are 90% confident that the interval from -20.5707 to -11.4293 holds the true mean of items sold at locations A and B.</em></u>

5 0
2 years ago
Yolanda received her telephone bill on July 27th and paid it three weeks later. What was the date that Yolanda paid her electric
Mrrafil [7]

Answer:

the answer is c august 17

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Help pls and thank you!!!
max2010maxim [7]

Answer:

Consistent and independent

Step-by-step explanation:

The only touch at one point and they are not the same line and are not parallel

5 0
3 years ago
Other questions:
  • Luigi is an urban planner. As an independent contractor, he charges a $140 fee plus $25 per hour for
    13·1 answer
  • The midpoint of line AC is
    10·1 answer
  • Find the value of x that will make A||B<br><br> Thanks for helping. :)
    7·2 answers
  • Can someone answer this question please WBA’s wee it correctly if it’s correct I will mark you brainliest
    11·1 answer
  • Plz make the graph <br>(WILL MARK THE BEST ONE AS BRAINILIST)​
    10·2 answers
  • A number a decreased by 7 is 2.
    5·2 answers
  • I need help because I'm solving these questions by the manual, and yet it still says that I am wrong after multiple attempts.
    13·1 answer
  • Solve for the value of X squared.
    5·2 answers
  • 11 3/4 times 5 3/4 times 8
    10·2 answers
  • Solve pls brainlies
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!