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
natta225 [31]
3 years ago
8

Kayla bought 16 bagels.She paid a total of $20.Write an equation to determine whether each bagel cost $1.50 or 1.25.​

Mathematics
1 answer:
Sedaia [141]3 years ago
8 0
Cost divided by number of items equals each items cost
20/16= 1.25
$1.25
You might be interested in
If you work for a company that offers a 10% commission on sales, how much product would you have to sell in order to receive $17
Nutka1998 [239]

Answer:Yes indeed

Step-by-step explanation:

4 0
2 years ago
Archaeologists attempt to reconstruct past ways of life by examining preserved bones, the ruins of buildings, and artifacts such
jok3333 [9.3K]
I thing b I'm not sure tho
5 0
3 years ago
Someone help me with this pleaseeee!!!! I need help ASAP pleasee!!!
tangare [24]
It’s 65.41 rounded to the nearest hundredth
4 0
3 years ago
Let X ~ N(0, 1) and Y = eX. Y is called a log-normal random variable.
Cloud [144]

If F_Y(y) is the cumulative distribution function for Y, then

F_Y(y)=P(Y\le y)=P(e^X\le y)=P(X\le\ln y)=F_X(\ln y)

Then the probability density function for Y is f_Y(y)={F_Y}'(y):

f_Y(y)=\dfrac{\mathrm d}{\mathrm dy}F_X(\ln y)=\dfrac1yf_X(\ln y)=\begin{cases}\frac1{y\sqrt{2\pi}}e^{-\frac12(\ln y)^2}&\text{for }y>0\\0&\text{otherwise}\end{cases}

The nth moment of Y is

E[Y^n]=\displaystyle\int_{-\infty}^\infty y^nf_Y(y)\,\mathrm dy=\frac1{\sqrt{2\pi}}\int_0^\infty y^{n-1}e^{-\frac12(\ln y)^2}\,\mathrm dy

Let u=\ln y, so that \mathrm du=\frac{\mathrm dy}y and y^n=e^{nu}:

E[Y^n]=\displaystyle\frac1{\sqrt{2\pi}}\int_{-\infty}^\infty e^{nu}e^{-\frac12u^2}\,\mathrm du=\frac1{\sqrt{2\pi}}\int_{-\infty}^\infty e^{nu-\frac12u^2}\,\mathrm du

Complete the square in the exponent:

nu-\dfrac12u^2=-\dfrac12(u^2-2nu+n^2-n^2)=\dfrac12n^2-\dfrac12(u-n)^2

E[Y^n]=\displaystyle\frac1{\sqrt{2\pi}}\int_{-\infty}^\infty e^{\frac12(n^2-(u-n)^2)}\,\mathrm du=\frac{e^{\frac12n^2}}{\sqrt{2\pi}}\int_{-\infty}^\infty e^{-\frac12(u-n)^2}\,\mathrm du

But \frac1{\sqrt{2\pi}}e^{-\frac12(u-n)^2} is exactly the PDF of a normal distribution with mean n and variance 1; in other words, the 0th moment of a random variable U\sim N(n,1):

E[U^0]=\displaystyle\frac1{\sqrt{2\pi}}\int_{-\infty}^\infty e^{-\frac12(u-n)^2}\,\mathrm du=1

so we end up with

E[Y^n]=e^{\frac12n^2}

3 0
3 years ago
Round 98,471 to the nearest ten thousands
d1i1m1o1n [39]
The answer to this question is 98000
4 0
3 years ago
Other questions:
  • Problem 2 Previous Problem Problem List Next Problem (1 point) Determine ifv is an eigenvector of the matrix A No 1 5 0 0 7 0 -2
    6·1 answer
  • Rico earns a weekly salary of $750 and a 5% total Commission on his sales Sean earns a weekly salary of $1,100 and a 2.5% commis
    8·2 answers
  • A group of 8 students apply for MBA program at CBA, CSULB. According to the historical data, probability of admittance at MBA pr
    7·1 answer
  • at the bake sale,jonah sold 4 cakes for 8 dollars each and 36 muffins for 2 dollars each.what was the total amount in dollars,th
    14·2 answers
  • Round off the number 0.007326 correct to 3 significant figures 3 decimal places​
    7·1 answer
  • Which is the equation of a line with a slope of -- 2 that passes through the point (-2,0)?
    15·1 answer
  • Simplify<br> (8^2)^3<br><br> I thought it was 8^5 of five but I might be wrong
    5·1 answer
  • If 4x = 28, find the value of 29 - 5x
    5·2 answers
  • Estimate<br> 754÷13 <br> Hurry up please
    15·2 answers
  • N (ENG) Lección (ESP)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!