Pencils cost $0.20 each.

A. Write a function rule to calculate the total cost of any number of pencils.

B. Use your rule to find the total cost of 12 pencils.

Answers

Answer 1
A) f(x)=0.2x
B)f(12)=0.2(12)=2.4 dollars

Related Questions

In 1 minute, Alex can type 44 words. While working on a project, Alex types from 10:00 AM until 1 AM, He takes a break from 1 0:25 AM to 10:40 AM. At the same rate, how many words did he type?

Answers

Answer:

39600 words

Step-by-step explanation:

Given data

In 1 minute, Alex can type 44 words

from 10:00 AM until 1 AM= 15 hours

15 hours to minutes= 15*60= 900 minutes

Hence in In 1 minute, Alex can type 44 words

            in  900 minutes he will type x words

cross multiply

x= 900*44

x= 39600 words

Hence he will type 39600 words

let's consider all possible rectangles with the same area of 30 sq inches. lets say that the height of this much rectangles y and the base is x. how would y depend on x

Answers

Answer:

Step-by-step explanation:

area = xy = 30 in²

y = 30/x

Answer:

30/x

Step-by-step explanation:

rsm

Suppose f(x)= 4x – 2
and g(x) = -2x + 1.

Find the value of

f(-1)/g(-3)

Answers

Step-by-step explanation:

f(-1)=4*(-1)-2=-4-2=-6

g(-3)=-2*(-3)+1=6+1=7

f/g=-6/7

Solve the following system of equations using the substitution method.
The problem- y= -2x+11
3x + y = 18

Answers

Answer:

x = 7

y = -3

Step-by-step explanation:

the first equation is already solved for 'y' so we can substitute '-2x+11' for 'y' in second equation

3x + (-2x + 11) = 18

x + 11 = 18

x = 7

solve for 'y'

y = -2(7) + 11

y = -14 + 11

y = -3

355+480 is the same as 335+ ?

Answers

Answer:

355+480 is the same as 335+500

Step-by-step explanation:

355+480=835

835-335=500

∴355+480 is the same as 335+500

PLEASE HELP, MARKING BRAINLIEST!!!

What is the value of x and y?

Thanks

Answers

i think x is 15 and y is 30

so.......

y=20underroot 3

and X=20

Someone plz help me I will give brainliest btw it’s not “decimals”

Answers

Answer:

It will not fit.

Step-by-step explanation:

The mat is 1/2 by 2/3. So, lets add that together.

1/2 + 2/3 = 7/6

Now there are 24 sixths in a fourth.

So subtract 24 - 4 = 17

Final answer would be 17/4. Still way to big to fit in the 1/4 step.

Hope this Helps!!

:)

btw. Im back home now :)

17/4
hiiiiiii !!!!!
lololol

(x+5)(x+2)cuanto es?​

Answers

ANSWER- x^2 - 7x + 10

Answer:

Expand the polynomial using the FOIL method.

x

2

7

x

+

10

Step-by-step explanation:

Find 17.3% of 286.1. Round to the nearest thousandth.

Answers

49 would be the answer I hope it helps

Answer:

Result = 49.495

Step-by-step explanation:

17.3% of 286.1=49.4953

rounded~49.495

Hope this helps as well

33s^5t^4u^8 ÷ 11st^3u^8

Answers

Answer:

[tex]3s^{4}t\\[/tex]

Step-by-step explanation:

Hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
how many I's r there in the above if u get it right I will give u brainliest
Good Luck!

Answers

Answer:

there are 10

Step-by-step explanation:

10

Answer:

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii, so I think a bit more than 100

Step-by-step explanation:

I counted it! ;) please give me brainiest!

Lawrence has $50.
He wants to buy some T-shirts that cost $12 each.

He also wants to have at least $10 left to buy lunch.

Which inequality shows the number of T-shirts, x, Lawrence can buy and still have at least $10 for lunch?

A. x≤3

B.x≥3

C. x≤4

D. x≥4

Answers

Answer:

choice A) =<3

Step-by-step explanation:

x = number of shirts

50 -10 = x(12)

40 = 12x

x = 3 .33

its a me MAAAAAAAAAAAAAAAAAAAAAAAAAAA

how big is the specific ocean?
how do i ask a question?
whats obamas last know btw? does ANYONE KNOW!!!!?!?!?!?!?
WHERE DO LOST SOCKS GO WHEN THEY GO MISSING??
why do my eyes hurt after looking at a picture of the sun;(
what would happen if i hired two private investigators to follow each other...

Answers

Answer:

1. The Pacific Ocean has an area of 63.78 million square miles, an average depth of 3,688 meters, and a volume of 660,000,000km cubed.

2. Use these guidelines when developing questions:

   Plan your questions.

   Know your purpose.

   Open conversation.

   Speak your listener's language.

   Use neutral wording.

   Follow general questions with specific ones.

   Focus your questions so they ask one thing at a time.

   Ask only essential questions.

3.  I don't know XD

4. On an adventure that humans don't know about

5. Depends on the picture of the sun.

6. They would probably be so confused while they tried to follow each other XD

Step-by-step explanation:

Can someone help me please

Answers

9514 1404 393

Answer:

 IS a parallelogram

Step-by-step explanation:

The slope formula for the slope of the line between points (x1, y1) and (x2, y2) is ...

  m = (y2 -y1)/(x2 -x1)

The distance formula for the length of that same line is ...

  d = √((x2 -x1)^2 +(y2 -y1)^2)

Here, you're asked to use each of these formulas 4 times, once for each side of the quadrilateral. I find it convenient to let a calculator or spreadsheet do the repetitive calculations. The result is attached.

The attachment shows that opposites sides have the same length and slope, so are parallel. The quadrilateral is a parallelogram. (The two points used in each calculation are the ones on the result line and the line immediately below. That is why point B is copied to the end of the list.)

_____

Additional comments

There are much simpler ways to prove the figure is a parallelogram. My favorite is to add the coordinates of the end points of the diagonals:

  B +D = (-2+6, -9-3) = (4, -12)

  C +E = (0+4, -5-7) = (4, -12)

These values being the same demonstrates the midpoints of the diagonals are coincident. That will only be the case if the quadrilateral is a parallelogram.

__

If you must use slope and distance formulas, showing either pair of opposite sides is parallel and have the same length is sufficient to guarantee that the other two sides are also parallel and have the same length. That is, the calculations required in this problem only need to be applied to one pair of opposite sides. (Using a spreadsheet, it's not a lot of extra work to do the calculations for both pairs of opposite sides.)


Suppose there are 100 trout in a lake and the yearly growth factor for the populations is 1.5. Write the exponential equation for this population.

Answers

T=100(1.5^t)
Where T is number of trout and t is time in years applied as an exponent to the 1.5 factor

What is the equation of the line that is parallel to y=-2/3x+4 and that passes through (–2,–2)?
Answers
-
-
-
y=-2/3x-4/3
y=-2/3x-10/3
y=-2/3x-2/3
y=-2/3x-17/4

Answers

Answer:

C) y= 2/3x -2/3

Step-by-step explanation:

(y-y1)=m(x-x1)

y+2=2/3(x+2)

y+2= 2/3x + 4/3

y= 2/3x -2/3

graph the line with slope -1/3 passing through the point (5,-4)

Answers

Answer:

Look at the image !!

Step-by-step explanation:

I hope this helps :D

Which point on the scatter plot is an outlier?
A.) Point A
B.) Point B
C.) Point C
D.) Point D​

Answers

Answer:

The outlier is A) Point A

Step-by-step explanation:

Hope this helps! <3

the population of a city decreased from 50000 to 45500 . what is the percentage decreased?​

Answers

The decreased population of a city from 25,000 to 24,500. Hence, the percentage decreased is 2%.
Answer: Decreased 9%

45500 = 91%

100 - 91 = 9%

factorise the equation 9x^2 - 4

Answers

Answer:

Step-by-step explanation:

a² - b² = (a +b)(a - b)

9x² - 4 = (3x)² - 2²

            = (3x + 2 )(3x - 2)

What is the slope of the line through the points (4, -7) and (9, 2)?

Answers

the answer

y/x so its 9/5

Marisol constructed a triangle. One angle in the triangle has a measure of 40°. Another angle in the triangle has a measure of 80°. What is the measure, in degrees, of the third angle in Marisol’s triangle?

Answers

Answer:

A triangles angle always equal to 180 degrees. So if you add up what you already have which is 80+40=120

Extra points to anyone who helps

Answers

The answer is d stay strong you can do this

HELP ME PLEASE!!ACTUALLY ANSWER IT!!

Answers

i think she could see which one was less sweet by checking the amount of sugar is in each recipe. and/or peaches

C=0.4(285.7)+100

(No answer choices)

Answers

Answer:

c=214.28

plz mark as brainliest

Step-by-step explanation:

Answer:

C=0.4(285.7)+100

Step-by-step explanation:

C=0.4(285.7)+100

C= 114.28 + 100

C= 214.28

Simplify the expression:

Answers

1. Pretty sure -2x+4/3
2. x+3/x-4

A quadrilateral has the following vertices on a coordinate plane:

Answers

Answer:  4

================================================

Explanation:

We'll only focus on points J and K.

J = (3, -6)

K = (-1, -6)

Because these two points have the same y coordinate (which is -6), this means we can ignore those values and subtract the x coordinates

3 minus (-1) = 3 - (-1) = 3 + 1 = 4

Or we could plot points J and K on the same xy grid system, and count out the number of spaces between J and K. You should count out 4 spaces.

This means segment JK is 4 units long.

Answer:

The answer is -10

Step-by-step explanation:

find the distance between (2, -2) and (0, -2)

Answers

Answer:

y= -2

x= 0

Explanation

0 - 2 = -2

-2 - (-2) = 0

Answer:

I believe the answer you're looking for is 2

Step-by-step explanation:

A triangle has two sides of 30 meters and 26 meters, and the angle between them is an obtuse angle. If the area of the triangle is 300 sq. Meters, find the measure of the obtuse angle (to the nearest degree).

Answers

Answer:

130°

Step-by-step explanation:

Using the formula

Area of the triangle = 1/2 absin theta

a and b are the sides

theta is the obtuse angle

Given

a = 30m

b = 26m

Area = 200m²

Required

theta

Substitute into the formula;

300 = 1/2(30)*(26)sin theta

300 = 15*26sin theta

300 = 390 sintheta

sin theta = 300/390

sin theta = 10/13

sin theta = 0.7692

theta = arcsin(0.7692)

theta = 50.28degrees

Since the angle is obtuse, it must lie between 90 and 180degrees

theta = 180-50.28

theta = 129.72°

Hence the measure of the obtuse angle to the nearest degree is 130°

How do the average rates of change for the pair of function compare over the given interval?

f(x)= -0.4x^2
g(x)=-0.8x^2
5≤x≤7

Answers

Answer:

The 3rd option is correct

Step-by-step explanation:

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