Mrs. Taft keeps inventory of the copy paper in the school copier room. Nine weeks ago, there were 150 reams of copy paper in the room. Now, there are 85 reams left. Which of the following two expressions are equivalent to the average weekly change in the number of reams of copy paper in the copier room over this time period?
Choices: -9/65, 9/-65, 65/-9, -65/9 (the negative for this one applies to both numbers.) and -65/-9

Answers

Answer 1

Answer:

-9/65

Step-by-step explanation:


Related Questions

Jose works as a salesperson at an electronics store and sells phones and phone accessories. Jose earns a $9 commission for every phone he sells and a 4$ commission for every accessory he sells. On a given day, Jose made a total of $253 in commission and sold 8 more accessories than phone sold and the number of accessories sold. Define the variables that you use to write the system.

Answers

Answer:

The variables would be 9p and 4c

Step-by-step explanation:

Jose gets $9 for every Phone or 9p and $4 for every accessory or 4a

help pls thanks huys

Answers

Answer:

12

Step-by-step explanation:

Let the unknown number be x.

8 = -4(1) + x

8 = -4 + x

x - 4 = 8

x = 8 + 4

x = 12

Answer:

[tex]a_{n}[/tex] = - 4n + 12

Step-by-step explanation:

The n th term of an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 8 and d = a₂ - a₁ = 4 - 8 = - 4 , then

[tex]a_{n}[/tex] = 8 - 4(n - 1) = 8 - 4n + 4 = - 4n + 12

There are 10 squares and 6 triangles. What is the simplest ratio of triangles to total shapes?

Answers

Answer:

3 : 8

Step-by-step explanation:

→ Find the sum of the shapes

10 + 6 = 16

→ Relate the triangles : total shapes

6 : 16

→ Divide by 2 on both sides

3 : 8

y = 2x + 1
x + 3y = 17​

Answers

i just used the guess and check method

x = 2
y = 5

Answer: x=2 and y=5

Step-by-step explanation:

Substitute the Y= equation for the Y in the second equation.

ie: x+3(2x+1)=17

Now all of your variables are the same and you can solve for X. You should get X=2.

Then plug 2 in for X in the first equation

ie: y=2(2)+1

Then solve for Y. You should get 5

What equals C in this problem?

Answers

Answer:

m<A + m<B + m<C = 180

53+90+m<C=180

m<C=180-143

m<C=37

What is the area of the bedroom ?

Answers

Answer:

what bedroom...............?

Answer:

[tex]95ft^2[/tex]

Step-by-step explanation:

We need to multiply 10 feet by 9 feet 6 inches.

6 inches is half a foot so technically 9 feet 6 inches is 9.5 feet.

Multiply 10 by 9.5.

(10)(9.5) = 95

Therefore the answer is 95ft squared.

Hope this helps!!

- Kay :)

PLEASE ANSWER MY LATEST QUESTION PLEASE
WHY WONT NOONE ANSWER IT PLEASEE ITIS DUE IN A FEW MINUTES!!!

Answers

Answer:

i will see if i can figure it out

gl dude

Step-by-step explanation:

Answer:

Step-by-step explanation:

Ok ill try to find it and answer it

-5 less than or equal to negative z over 3

=2

Answers

the answer correctly would be A

if f is a linear function, f(k)=16 and f(-k)= -4 then what is the value of f(0)?​

Answers

f(0) =  ( f(k) +f(-k) ) / 2

f(0) = (16 - 4) / 2

f(0) = 12 / 2

f(0) = 6  → ANSWER

*Remember that f(0) = m(0) + n = n

If we have f(x) = mx + n, then:

f(k)= mk + n     and       f(-k)= -mk + n

If we add them:

  f(k) + f(-k)

= mk + n -mk + n

= 2n

= 2f(0)

So we conclude that:

f(0) = [f(k) + f(-k)] / 2

What is the solution to this equation?

9x + 5 = 86

Answers

Answer: 9(9)+ 5 = 86

Step-by-step explanation: the x equals 9 so means 9(9) + 5 = 86

Answer:

x = 9

Step-by-step explanation:

9x + 5 = 86, minus 5 of both sides

9x = 81, divide 9 on both sides

x = 9

Which set of numbers includes only integers? Left-brace 14, 9, one-third, 0, 243 Right-brace Left-brace 14, negative 7, 0, 243, negative 3 Right-brace Left-brace 14, Negative StartFraction 9 Over 10 EndFraction, 56, 0, negative 243 Right-brace Left-brace 14, 2.3, 654, 0, 9 Right-brace

Answers

Answer: Left-brace 14, negative 7, 0, 243, negative 3 Right-brace

Step-by-step explanation:

To obtain our answer, we need to know what an integer means and hence, it's properties or characteristics ;

An integer must be an whole number including Zero, which means no fractions

Similarly, integer numbers could be either positive or negative in value.

Hence, from the set represented above ;

(14, - 7, 0, 243, - 3) ; all the numbers in the set conform to the characteristics expected of an integer.

Answer:B

Step-by-step explanation:

Landon is building new bookshelves for his bookstore's new mystery section. Each shelf can hold 37 books. There are 1,221 mystery books. How many shelves will he need to build? (please help I suck at mathhhh!)

Answers

Answer:

33

Step-by-step explanation:

Landon is building new book shelves for his bookstore's new mystery section

Each of the shelf can hold 37 books

There are 1221 mystery books

Therefore the number of shelves that Landon will need to build can be calculated as follows

= 1221/37

= 33

Hence Landon needs to build 33 shelves

Solve for b: 4b-11=1-2(3-b)
A) 0
B) 14
C) 3
D) -16

Answers

Answer:

4b -11 = 1 -2(3-b) (use the distributive property on -2(3-b))

4b -11 = 1 -6 +2b ( combine like terms on the right side of the = sign)

4b -11 = -5 +2b  (subtract 2b from both sides)

2b -11 = -5 (add 11 to both sides)

2b = 6 (divide each side by 2)

b= 3 ( so, your answer is C)

Answer:

C

Step-by-step explanation:

4b-11=1-2(3-b)

4b-11=1-6+2b

4b-11=-5+2b

4b=6+2b

2b=6

b=3

Your answer is C

I need help ASAP I don’t no how to dl this so if please leave a explanation but if you don’t want to you don’t have to

Answers

Answer:

f-1(x)=2x over x-1

Step-by-step explanation:

3. Timber Hill Tennis Club sells monthly
memberships for $72 and tennis rackets for
$150 each. The tennis club has a sales goal
of $5400 per month.
a. Write a linear equation that
describes the problem

Answers

The linear equation that describes the problem 72x + 150y = 5400.

What is a linear equation in mathematics?

A linear equation seems to be an algebraic equation of the form y=mx+b, including only a constant and an initial (linear) component, where m is the slope, as well as b,as well as b is the y-intercept. The preceding is sometimes referred to as a "linear equation with two variables," where both x and y are the variables.

Why is it termed a linear equation?

The graph of a linear equation is  a straight line. Linear Equation Definition: A linear equation seems to be an algebraic equation in which each term has an exponent of one and when graphed, it always results in some kind of a straight line.  it is called a 'linear equation.'

According to the given data:

Tennis Club sells monthly memberships for  $72.

Tennis rackets for $150.

The tennis club  sales goal of $5400 per month.

The linear equation.

72x + 150y = 5400.

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Can someone Please help me get the answer for what is ⅘ of 12?

Answers

Answer:

9.6

Step-by-step explanation:

On a piece of paper, graph y< x + 1. Then determine which answer matches
the graph you drew.

Answers

Answer:

Step-by-step explanation:

Answer and explain step by step.​

Answers

Answer:

Step-by-step explanation:

it no solution

No solution is parallel to each other.

solution crosses each other.

infinite is only one line.

Mom is 8 years older than 4 times Sarah’s age. The sum of their ages is less than 83. What is Sarah’s oldest possible age?

Identify:

Strategize:

Set up:

Solve:

Check:

Answers

Jing-mei starts out being excited and confident about her mother's plans for her. She believes that if she and her mother found the right kind of prodigy for Jing-mei, then Jing-mei would one day become a perfect child. As she begins losing hope, however, Jing-mei's character starts to change. Tired of constantly failing her mother's high expectations, she decides to set her own expectations, and she becomes willful, disobedient, and vocal. Ironically, her motivation throughout the story stays the same; she wants her mother to love and accept her. She knows she'll never be the type of girl her mother wants, so she resists her mother's wishes. Yet by doing the opposite of what her mother wants, Jing-mei still cannot feel that acceptance that she really wants

A rock is thrown from the top of a ladder. The function
h(t) = -16t² + 120t + 10 gives the height of the rock t seconds after it is
thrown a certain number of feet.
1. What is the initial height that the rock was thrown from?

Answers

Answer:

h'(t)=88

Step-by-step explanation:

h'(t)=d/dt (-16t x 2 + 120t + 10)

h'(t)=d/dt (-32t + 120t + 10)

h'(t)=d/dt (88t + 10)

h'(t)=d/dt (88t) + d/dt (10)

h'(t)=88 + 0

Help please :)) Thanksss

Answers

check it out . it seems to be the right answer. .

What is the radius of a hemisphere with a volume of 324\text{ ft}^3,324 ft 3 , to the nearest tenth of a foot?

Answers

Answer:

5.4 ft

Step-by-step explanation:

Given that the volume of the hemisphere sphere, [tex]V= 324 ft^3[/tex].

Let r be the radius of the hemisphere.

As the volume of the hemisphere, [tex]V=\frac {2}{3}\pi r^3[/tex]

By using the given value, we have

[tex]\frac {2}{3}\pi r^3=324[/tex]

[tex]\Rightarrow r^3=\frac{324\times 3}{2\pi} \\\\\Rightarrow r^3=\frac{324\times 3}{2\times3.14} \\\\\Rightarrow r^3=154.78 \\\\\Rightarrow r=\left( 154.78 \right)^{1/3} \\\\[/tex]

[tex]\Rightarrow r=5.4[/tex] ft

Hence, the radius of the hemisphere is 5.4 ft.

Which of the sets of ordered pairs represents a function? (5 points)
A= {(2. -2), (5, -5), (-2, 2). (-5, 5))
B= {(4, 2). (4, -2). (9, 3). (9, -3)}
O1) Only A
O2) Only B
O3) Both A and B
O4) Neither A nor B

Answers

Answer:

The answer is choices Only A

Step-by-step explanation:

hope this helps

how many groups of 7/4 are in 1

Answers

Answer:28

Step-by-step explanation:

5, 4, 16/5...
Find the 7th term.

HELP DUE AT 11:59!


Answers

Answer:

a₇ = [tex]\frac{4096}{3125}[/tex]

Step-by-step explanation:

There is a common ratio r between consecutive terms, that is

r = 4 ÷ 5 = [tex]\frac{4}{5}[/tex]

r = [tex]\frac{16}{5}[/tex] ÷ 4 = [tex]\frac{4}{5}[/tex]

This indicates the sequence is geometric with n th term

[tex]a_{n}[/tex] = a₁ [tex](r)^{n-1}[/tex]

where a₁ is the first term and r the common ratio

Here a₁ = 5 and r = [tex]\frac{4}{5}[/tex] , thus

a₇ = 5 × [tex](\frac{4}{5}) ^{6}[/tex] = 5 × [tex]\frac{4096}{15625}[/tex] = [tex]\frac{4096}{3125}[/tex]

The algebraic expression p(x) = 3x^4 +1 can become a polynomial:

a) for any value of a, b and c
b) a + b=c
c) b=0
d) b=√2

Answers

Answer:

A polynomial p(x) in one variable x is a mathematical articulation in x of the structure p(x) = anx n + an−1x n−1 + ....... + a2x 2 + a1 x + a0, where a0, a1, a2, .... an are individually the coefficients of x 0 , x 1 , x 2 , .... x n and n is known as the level of the polynomial if a ≠ 0. Each anx n ; an−1x n−1 ; .... a0, is known as a term of the polynomial p(x)

Solve the system.



6x - 2y + z = -2
2x + 3y – 3z = 11
х+ 6у = 31

Answers

6x - 2y + z = -2 .......... (i)2x + 3y – 3z = 11 ...........(ii)х + 6у = 31 ..............(iii)

After Multiplying 3 with the eq. (i) we will add this to eq. (ii)

[tex] \sf 18x - 6y + 3z = - 2[/tex]

[tex] \sf2x + 3y - 3z = 11[/tex]

_______________________

[tex]⇒ \sf20x - 3y = 9 \: \: .........(iv)[/tex]

After Multiplying 2 with the eq. (iv) we will add this to eq. (iii)

[tex] \sf \: x + 6y = 31[/tex]

[tex] \sf40x - 6y = 18[/tex]

_________________

[tex] \sf \: 41x = 49[/tex]

[tex]⇒ \sf \: x = \frac{49}{41} [/tex]

After putting the value of x in the eq. (iii)

[tex] \sf \frac{49}{41} + 6y = 31[/tex]

[tex]⇒ \sf6y = 31 - \frac{49}{41} [/tex]

[tex] \sf \: ⇒ 6y = \frac{1271 - 49 }{41} [/tex]

[tex]⇒ \sf6y = \frac{1222}{41} [/tex]

[tex]⇒ \sf \: y = \frac{1222}{41 \times 6} [/tex]

[tex]⇒ \sf \: y = \frac{611}{123} [/tex]

After putting the value of x and y into eq. (i)

[tex] \sf6 \times \frac{49}{41} - 2 \times \frac{611}{123} + z = -2 [/tex]

[tex]⇒ \sf\frac{294}{41} - \frac{1222}{123} + 2 = - z[/tex]

[tex]⇒ \sf \frac{882 - 1222 + 246}{123} = - z[/tex]

[tex]⇒ \sf - \frac{94}{123} = - z[/tex]

[tex]⇒ \sf \: z = \frac{94}{123} [/tex]

Hence,

[tex] \bf • \: The \: value \: of \: x = \frac{49}{41}

[tex] \bf • \: The \: value \: of \: x = \frac{49}{41} [/tex]

[tex] \bf • \: The \: value \: of \: y = \frac{611}{123}

[tex] \bf • \: The \: value \: of \: y = \frac{611}{123}[/tex]

[tex] \bf• \: The \: value \: of \: z \: = \frac{94}{123}[/tex]

Find the area of the polygon with the given vertices.
NC (– 2, 1), P(3, 1), Q(3,-1), R( – 2, -1)
what is the area in
square units.

Answers

Answer:

A= w . h = 10

Step-by-step explanation:

Look at attached graphic.

It's a rectangle.

width (in x axe) = length between 3 to -2 = 5

height (in y axe) = length between 1 to -1 = 2

⠀⠀⠀⠀⠀
(X+5)²+3x+15
This is the equation

Answers

The factors of the given equation (X+5)²+3x+15 are x(x+20)(x+2).

What do we mean by equations?An equation is made up of expressions that have the same value.A formula is a two- or more-variable equation that represents a relationship between the variables. A mathematical statement made up of two expressions joined by an equal sign is known as an equation. 3x - 5 = 16 is an example of an equation. We get the value of the variable x as x = 7 after solving this equation.

The equation is: (X+5)²+3x+15

Then,(X+5)²+3x+15

x² + 25 + 3x + 15x² + 3x + 40x² + x (  +  ) + 40x² + x ( 20 + 20 ) + 40x² + 20x + 20x + 40x ( x + 20 ) + 20 ( x + 2 )

Factors are: x(x+20)(x+2)

Therefore, the factors of the given equation (X+5)²+3x+15 are x(x+20)(x+2).

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7. Hannah’s cell phone plan has a start up fee of $200 and there is a charge of $50 per month.

Write an ​equation​ to show the total cost of her cell phone plan, where x is the number of months and y is the total cost (monthly charge and total cost)

Answers

Answer:

y=200+50x

Step-by-step explanation:

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