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Rufina [12.5K]
3 years ago
9

Kiersten runs a website that helps people learn programming. Every month, Kiersten receives a subscription fee of \$10$10dollar

sign, 10 from each of the subscribers to her website. Last month, the website had 100100100 subscribers. This month, 303030 new members joined the website, and 101010 members cancelled their subscription.
Mathematics
2 answers:
NemiM [27]3 years ago
5 0
700009000720067261836
postnew [5]3 years ago
4 0

Answer:

The answer is $1200.

Step-by-step explanation:

Every month, Kiersten receives a subscription fee of $10.

Last month, the website had 100 subscribers.

This month, 30 new members joined the website, and 10 members cancelled their subscription.

So, total subscription this month = 100+30-10=120

Hence, her earnings this month will be = 10\times120=1200 dollars

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Determine the combined surface area of a cube with an edge that is 3.5 cm long and a cube with an edge that is 2 cm long.
Elis [28]

Answer:

97.5

Step-by-step explanation:

3.5cm cube surface area:

3.5*3.5*6 (the 6 faces of the cube) =

73.5

2cm cube surface area:

2*2*6 =

24

combined surface area:

73.5+24=

97.5

5 0
3 years ago
Drina wrote the system of linear equations below.
zalisa [80]

Answer:

Option c, A square matrix

Step-by-step explanation:

Given system of linear equations are

3x-2y=-2\hfill(1)

7x+3y=26\hfill(2)

-x-11y=46\hfill(3)

Now to find the type of matrix can be formed by using this system

of equations

From the given system of linear equations we can form a matrix

Let A be a matrix

A matrix can be written by

A=co-efficient of x of 1st linear equation    co-efficient of y of 1st linear equation   constant of 1st terms linear equation

co-efficient of x of 2st linear equation   co-efficient of y of 2st linear equation  constant of 2st terms linear equation

co-efficient of x of 3st linear equation   co-efficient of y of 3st linear equation    constant of 3st terms linear equation           3\times 3

which is a 3\times 3 matrix.

Therefore A can be written as

A= \left[\begin{array}{lll}3&-2&-2\\7&3&26\\-1&-11&46\end{array}\right] 3\times 3

Matrix "A" is a 3\times3 matrix so that it has 3 rows and 3 columns

A square matrix has equal rows and equal columns

Since matrix "A" has equal rows and columns Therefore it must be a square matrix

Therefore the given system of linear equation forms a square matrix

7 0
3 years ago
Read 2 more answers
Select the expressions that are equivalent to 10 + 2x + 5y + 3x.
Ierofanga [76]
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3 0
3 years ago
X+5 divided by 3 is less than or equal to 2
hichkok12 [17]
\frac{x+5}{3}  \leq 2
times both sides by 3
x+5≤6
minus 5 both sides
x≤1
5 0
3 years ago
K divided by 11 is 7
Pani-rosa [81]
K/11 = 7
multiply 11 to both sides
K/11 (11) = 7(11)
multiply 7 and eleven together
K = 7(11)
Answer
K = 77


77 is your answer

hope this helps
5 0
3 years ago
Read 2 more answers
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