Find the sum or difference
1/2 (2r + 4) - 1/4 (16 - 8r)

Answers

Answer 1

Answer:

= 3r - 2

Step-by-step explanation:

would you like an explanation or are you fine!


Related Questions

Solve: 4n - 6 = 12
O n = 4
O n = -4
O n = 4.5
O n=-4.5

Answers

Answer:

4.5

Step-by-step explanation:

4n - 6 = 12

add +6 to both sides

4n = 18

divide by 4

4/4n = 18/4

n = 4.5

percents and poprtions ​

Answers

It's C I'm pretty sure

The altitude of an airplane taking off from an airport is represented by
the equation shown, y = 500x + 1050, where y represents the altitude, in
feet, of the airplane and x represents the number of minutes since take-
off. What is the altitude of the airplane after 5 minutes?​

Answers

Answer:

3550 ft.

Step-by-step explanation:

y = 500(5) + 1050

  = 2500 + 1050

  = 3550 ft,


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

Explain the process for determining sales tax and total purchase price.

Answers

Answer:

in most states sales tax is .07 cents for every dollar you spend. for food it is different

Step-by-step explanation:

Amir stands on a balcony and throws a ball to his dog, who is at ground level.The ball's height (in meters above the ground), x seconds after Amir threw it, is modeled by How many seconds after being thrown will the ball hit the ground?

Answers

Answer:

6 seconds

Step-by-step explanation:

The computation of the number of second would be

In the case when the ball would hit the ground, the ball height would be zero

So the following equation would be

[tex]0 = -(x -2)^2 + 16\\\\(x -2)^2 = 16\\\\x - 2 = \sqrt{16}\\\\x -2 = 4\\\\x = 6[/tex]

So the number of seconds is 6

Find x y and ABHG for brainliest

Answers

Answer:

because AB//EF//CD, using thales theorem in ABEF, we have:

[tex]\frac{12}{21}=\frac{15}{y}\\\\<=>y=\frac{15.21}{12}=26.25[/tex]

we also have: CD//EF//GH => using thales theorem in CDGH:

[tex]\frac{21}{x}=\frac{y}{10}\\\\<=>x=\frac{210}{y}=\frac{210}{26.25}=8[/tex]

with y = 26.25 => AB = 26.25 - 14 = 12.25

        x = 8 => GH = 5.8 - 3 = 40 - 3 = 37

+) the perimeter of ABHG = AB + AC + CE + GE + GH + HF + DF + BD

= 12.25 + 12 + 21 + 8 + 37 + 10 + 26.25 + 15

= 141.5

Step-by-step explanation:

Mary has 3636 flower pots. She plants daisies in \frac{2}{3} 3 2 ​ of her flower pots. In how many flower pots does Mary plant daisies? Use paper to show your work. Enter your answer in the box.

Answers

Answer: 24

Step-by-step explanation:

Number of flower pots = 36

Since she plants daisies in 2/3 of her flower pots, the number of flower pots that Mary plant daisies will be:

= 2/3 × 36

= 2 × 12

= 24

She plants daises in 24 flower pots

PLS HELP I dont know what t odo

Answers

Answer:

Y = 3/2x + 8

Step-by-step explanation:

Slope (AKA M) can be found searching for each point on the graph. Since the graph starts at 8 it is the Y intercept (AKA B)

Stan has a rectangular piece of carpet with an area of 23.4 square meters. The piece of carpet is 13 meters long. What is the width of the piece of carpet? Solve this problem any way you choose.

Answers

Answer:

The breadth of rectangular carpet is 1.8 m

Step-by-step explanation:

23.4/13=1.8  sorry if this is not enough explanation

can somebody please help i’ve posted this 1 time and people just used it for points

Answers

V=3.14 5^2x15-3.14x2^2x15
=3.14x15(5^2-2^2) <—21

≈989. 601685

≈989.1 <—(3.14)

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%

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

A.The original price of a sofa is $500. Answer the following questions. If the sofa price decreased by 20%, what is the new price?
B. The company can’t sell the sofa after 3 weeks so they reduce the price to $320. What is the percent decrease?

Answers

Answer:

A. 25

B. 0.64

Step-by-step explanation:

Sorry there is no Step-by-Step explanation to this equation as I have generated an answer from my system.

--

Use: Division.

Use: PEMDAS

--

#LearningFromHome

Answer:

-36% decrease

Step-by-step explanation:

320-500=-180

-180/500=.36*100=-36%

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:

Pls, answer for 20 points asap. I really need this

Answers

Its B then A

Step-by-step explanation:

Answer:

You helped me so it's B and A mark me brainliest please

Step-by-step explanation:

The temperature on Monday in Alaska is -24ºF. On Tuesday, the temperature rises 24ºF.

What is the temperature on Tuesday, in degrees Fahrenheit?

Answers

Answer:

0 degrees

Step-by-step explanation:

-24 + 24 = 0

Answer:

Wouldn't the answer be 0 degrees Farenheit?

Step-by-step explanation:

-24 + (+24)=0

Please answer step by step:



-4=2x+16

What does x equal?

x=____?

Answers

Answer:

Step-by-step explanation:

-4=2x+16

-16. -16

-20=2x

20/2=2x/2

10=x

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 width if a rectangular room is 1 less than twice the length if the perimeter is 196 feet how long is the length

Answers

Answer:

l = 33 feet

Step-by-step explanation:

Let length be l.

Width, b = 2l-1

Perimeter of the room, P = 196

We know that the perimeter of the rectangle is given by :

P = 2(l+b)

196=2(l+2l-1)

98=3l-1

Adding 1 both sides.

98+1=3l-1+1

3l=99

l = 33 feet

So, the length of the room is 33 feet.

The equation represents the area, A, of a rectangle, in square units.
A = x2 – 3 – 6
Which expression could represent the length of the rectangle, in units?
O (2-3)
O (2-2)
Ox
O 6.2

Answers

Look up "Everything You Need To Know About Math In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in math class all the time and I've aced every test.

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

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

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

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°

what is 187 divided by 9

Answers

187/9= 20.7
20 remainder 7
20 the remainder is 7

326 is 28% of what number

Answers

Answer:

1164.29

Step-by-step explanation:

divide 326 by 28 then times by 100 to get 100% of the number

hellooooooooooooooooo

Which number is prime?
A. 21
B. 23
C. 25
D. 27

Answers

B. 23


Hope this helps!!!!!!

Answer:

23

Step-by-step explanation:

Can someone PLEASE help me with this question?

Answers

9514 1404 393

Answer:

  11

Step-by-step explanation:

The future value of the account is given by the formula ...

  A = P(1 +r/12)^(12t) . . . . principal P invested at rate r for t years

Solving for t, we find ...

  A/P = (1 +r/12)^(12t) . . . . . . . . . . . divide by P

  log(A/P) = 12t·log(1 +r/12) . . . . . . take logs

Divide by the coefficient of t, then fill in the numbers.

  t = log(A/P)/(12·log(1 +r/12)) = log(202800/93000)/(12·log(1 +.068/12))

  t ≈ 11.497

It will take about 11 years for the account balance to reach the desired amount.

write an equation of the form y equals MX for the line shown below if appropriate use the decimals for the slope 2.5 0.0​

Answers

Answer:

y = 2.5x

Step-by-step explanation:

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