Ask question

Ask question

All categories

2 years ago

12

Emily purchased lemons for $600. She sold 3/4 of these at a loss of 20% and the remaining at a gain of 20%. How much percent doe

s she gain or lose in the whole transaction?

1 answer:

Lelechka [254]2 years ago

8 0

Answer:

she loses 40% I think

Step-by-step explanation:

1/4=20% loss

3/4=60% loss

she gains 20%

60%-20%=40%

You might be interested in

Which of the following equations best represents the regression line for the data given in the

True [87]

The regression equation for the data given is y= -8.57 -2.31x

Step-by-step explanation:

The first step is to form a table as shown below;

x y xy x² y²

1 4 4 1 16

2 1 2 4 1

3 5 15 9 25

4 10 40 16 100

5 16 80 25 256

6 19 114 36 361

7 15 105 49 225

28 60 360 140 984 ------sum

A linear regression equation is in the form of y=A+Bx

where ;

x=independent variable

y=dependent variable

n=sample size/number of data points

A and B are constants that describe the y-intercept and the slope of the line

Calculating the constants;

A=(∑y)(∑x²) - (∑x)(∑xy) / n(∑x²) - (∑x)²

A=(60)(140) - (28)(360) / 7(140)-(28)²

A=8400 - 10080 /980-784

A= -1680/196

A= - 8.57

B= n(∑xy) - (∑x) (∑y) / n(∑x²) - (∑x)²

B= 7(360)-(28)(60) / 7(60) - (28)²

B=2520 - 1680 /420-784

B=840/-364

B= -2.31

y=A+Bx

y= -8.57 -2.31x

Learn More

Regression equation :brainly.com/question/12280902

Keywords : equations, regression line, data

#LearnwithBrainly

7 0

3 years ago

The graph above is a linear equation that includes the points (-3,-2) and (-1,2). Find the slope of the line. Explain how you ar

omeli [17]

Answer:

The slope is 2 and the equation would be m(x)=2x+4.

Step-by-step explanation:

y/x so by looking at the graph you would go up to units and over l unit, therefore giving you the slope of 2.

8 0

2 years ago

Find the radius of convergence, r, of the series. ∞ xn 2n − 1 n = 1 r = 1 find the interval, i, of convergence of the series. (e

Bingel [31]

Assuming the series is

$\displaystyle\sum_{n\ge1}\frac{x^n}{2n-1}$

The series will converge if

$\displaystyle\lim_{n\to\infty}\left|\frac{\frac{x^{n+1}}{2(n+1)-1}}{\frac{x^n}{2n-1}}\right|$

We have

$\displaystyle\lim_{n\to\infty}\left|\frac{\frac{x^{n+1}}{2(n+1)-1}}{\frac{x^n}{2n-1}}\right|=|x|\lim_{n\to\infty}\frac{\frac1{2n+1}}{\frac1{2n-1}}=|x|-\lim_{n\to\infty}\frac{2n-1}{2n+1}=|x|$

So the series will certainly converge if $-1$ , but we also need to check the endpoints of the interval.

If $x=1$ , then the series is a scaled harmonic series, which we know diverges.

On the other hand, if $x=-1$ , by the alternating series test we can show that the series converges, since

$\left|\dfrac{(-1)^n}{2n-1}\right|=\dfrac1{2n-1}\to0$

and is strictly decreasing.

So, the interval of convergence for the series is $-1\le x$ .

6 0

3 years ago

Can someone please help me with this question ?

____ [38]

The cost of water would be $615 as he needs 3 acre-feet of water for 205 acre/ft

5 0

3 years ago

What is the equation of the function that is graphed as line a?

eduard

Answer:

its the second one

Step-by-step explanation:

4 0

3 years ago