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PolarNik [594]
3 years ago
8

I WILL GIVE BRAINLIEST

Mathematics
1 answer:
Alina [70]3 years ago
6 0

Answer:

$1,200

Step-by-step explanation:

We know that Kiersten already has 100 subscribers. This month 30 new members joined, so her website would have 130 subscribers, however 10 members canceled their subscription. So if she went up to 130 subscribers, but 10 quit, we just do 130-10= 120. So we know she currently has 120 subscribers to her website.

We also know that from each member, Kiersten receives $10

So we can set up an equation like this

(Number of subscribers) x (Subscription fee) = (Amount of money she receives)

So now lets just insert the numbers into that

120 x $10 = $1,200

So Kirsten will make $1,200 dollars this month.

You might be interested in
The explicit formula of an arithmetic sequence is f(n) =3-4(n-1)
Mariulka [41]

Answer:

18th term

Step-by-step explanation:

3-4(n-1) = -65

-4n + 4 = -68

-4n = -72

n = 18

8 0
4 years ago
Question 3
lara31 [8.8K]

9514 1404 393

Answer:

  48.6%

Step-by-step explanation:

Efficiency of energy conversion is the quotient of output energy and input energy.

  (3291 J)/(6771 J) × 100% ≈ 48.6%

The solar panel's conversion efficiency is about 48.6%.

_____

<em>Additional comment</em>

With current (2021) technology, the best efficiency one can expect from a solar panel is in the neighborhood of 23%.

5 0
3 years ago
Roxie is picking out some movies to rent, and she is primarily interested in horror films and foreign films. She has narrowed do
olya-2409 [2.1K]

Answer:

2470

Step-by-step explanation:

Roxie must pick 3 movies from 20 horror films and 8 foreign films with at least two horror films.

i) She can pick 2 horror films and 1 foreign film

The number ways this is possible = C(20, 2) * C(8, 1)

C(20,2)=\frac{20!}{(20-2)!2!}=190\\\\C(7,1)=\frac{7!}{(7-1)!1!}=7

The number ways this is possible = C(20, 2) * C(8, 1) = 190 * 7 = 1330

ii) She can pick 3 horror films

The number ways this is possible = C(20, 3)

C(20,3)=\frac{20!}{(20-3)!3!}=1140\\\\

The number ways this is possible = C(20, 3) = 1140

The number of ways of picking 3 movies from 20 horror films and 8 foreign films with at least two horror films = pick 2 horror films and 1 foreign film + pick 3 horror films

The number of ways of picking 3 movies from 20 horror films and 8 foreign films with at least two horror films = 1330 + 1140 =2470

7 0
3 years ago
Jeff bought 10 cookies and ate 4 of them. He ate what percent of the cookies.
never [62]
60 percent was left
10-4=6
4=40%
6 0
3 years ago
Read 2 more answers
I need help............,<br>only question no.12​
rusak2 [61]

Answer:

12. Please find attached the required plot created with MS Excel

Step-by-step explanation:

12. The points are given in their <em>x </em>and <em>y</em>-coordinates as follows;

(-2, 5), and (5, 2)

To plot the points on a graph, MS Excel plot function can be used as follows;

1) We enter the <em>x </em>and <em>y-</em>values of the first point, side by side in cells on the Excel spreadsheet

We enter the <em>x </em>and <em>y-</em>values of the second point, beneath the first point on the spreadsheet as follows;

\left | \begin{array}{ccc}-2&|&5\\5&|&2\end{array}  \right|

2) The four cells are selected and from the Insert menu within the Chart group, the Scatter (x, y) chart is selected

3) The plot created with MS Excel is attached

5 0
3 years ago
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