m(n+r)=s solve for n. Show two methods.

Answers

Answer 1

9514 1404 393

Answer:

n = (s/m) -r n = (s -mr)/m

Step-by-step explanation:

1. Undo the operations done to n, in reverse order. Here, n has r added and the sum is multiplied by m. First we divide by m, then we subtract r.

  m(n+r) = s . . . given

  n +r = s/m . . . divide by m

  n = (s/m) -r . . . subtract r

__

2. Eliminate the parentheses, then proceed as above. Subtract the added term, then divide by the coefficient of n.

  m(n+r) = s

  mn +mr = s . . . eliminate parentheses

  mn = s -mr . . . subtract the added term

  n = (s -mr)/m . . . divide by the coefficient of n


Related Questions

What is the slope of the line with an equation of 5x - 3y = -12

Answers

Answer: [tex]m=\frac{5}{3} =1.67[/tex]

Step-by-step explanation:

Original equation:  [tex]5x-3y=-12[/tex]Subtract 5x from both sides of the equation: [tex]-3y=-5x-12[/tex]Divide both sides of the equation by -1: [tex]3y=5x+12[/tex]Divide both sides of the equation by 3 to get y on the left, leaving the equation in [tex]y=mx+b[/tex] form: [tex]y=\frac{5}{3}x+4[/tex]Evaluate. Slope is equal to m in this form, so the slope is [tex]m=\frac{5}{3}[/tex].

Hope this helps!

Graph the line that represents this equation: y+2=1/2(x+2)

Answers

Answer:

x=2y+2

Step-by-step explanation:

ur welcome

Answer:

y = 1/2x - 1

Step-by-step explanation:

This formula is currently written in point-slope form (y+ + y1 = m (x + x1). To graph it easier, the first thing you would do is make it slope-intercept form (y=mx + b).

First, distribute the 1/2 into the parenthesis.

1/2(x+2)

1/2x + 1

Then, the equation should look like this: y+2 = 1/2x + 1

The next step is to subtract the 2 from both sides.

It should look like this:

y = 1/2x -1

Graph it by first plotting the y-intercept, -1, on the y-axis, and counting up 1 space and to the right 2 spaces, then drawing a line. I hope this helped!  

Y=2x-7 2x+y=5 solve the system

Answers

Make it 2x-y=7, 2x+y=5, now do elimination. -2y=2, y=-1.
Plug in -1 for y and solve for x
2x+1=7, x=3
Final answer: x=3, y=-1

Answer:

x=3 y=-1

Step-by-step explanation:

y=2x-7

2x+y=5

___________________

2x+2x-7=5

4x-7=5

4x=12

x=3

___________________

2(3)-7=y

6-7=y

-1=y

It took Hannah 32 minutes to run 8 laps. How many minutes will it take her to run 1 lap?

Answers

i think the answer would be 4

1)The price of a pair of boot was reduced from $80 to $60. By what percentage
was the price of the boots reduced?

2)Lisa and her date spent $87.70. They want to leave a 20% tip what amount would be reasonable for the tip

Answers

Answer:

1) 25%

2) $17.54

Step-by-step explanation:

1) The boots were reduced from $80 to $60, therefore the total amount they were reduced by in terms of money is $20. To find out what percentage $20 is of $80, you divide.

20/80 = 0.25

0.25 = 25 % (to change a decimal to a percentage, you multiply by 100)

2) 20% = 0.20 (to change a percentage to a decimal, you divide by 100)

To find 20% of $87.70, multiply 0.20 by 87.70.

87.70 x 0.20 = 17.54

can you guys hurry pls I only have 20 more minutes

Answers

i think it’s 3? i’m sorry if that’s wrong

what is the next fraction in this sequence?
8/12, 7/12, 6/12, 5/12...
please help I'm not sure if it's 4/12 or 1/3

Answers

Answer:

4/12

Step-by-step explanation:

if you look 6/12 wasn't simplified so I would guess that you would leave it as 4/12

Which segment on the graph could be described as “rising slowly”?

Answers

Answer:

b

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The graph on segment B is increasing at a gradual rate (especially compared to the other graph segments)

Will mark branniest if gotten right

Answers

Answer:

i think it is 34

Step-by-step explanation:

both triangles are the same one has 84 and 36 so he other has 86 and 34 then they are = hope this helps.

(50 points) If the area of the rectangle shown is 88 square inches, which equation could be used to find the value of x?

Answers

Answer:

x=3

Step-by-step explanation:

In October they recorded income of $200 and the cost of new supplies of
$125. What was their account balance after October? *

Answers

I’m assuming they lost $125 due to supplies
$200-$125 would be balance

Point p is located in the first quadrant of a coordinate plane.If p is reflected across to form p',choose the four statements that will always be true.

Answers

Answer:

When we do a reflection of a point (x, y) about a given line, the distance between the point (x, y) and the line is invariant under the transformation.

In the case of reflection over x-axis we have:

T (x, y) => (x, -y)

In the case of reflection over the y-axis, we have:

T (x, y) => (-x, y)

Because these two lines are perpendicular, a reflection over the x-axis leaves the distance between the point and the y-axis invariant (and the same for the inverse case)

Then 4 statements that will always be true:

1) The distance between p' and the x-axis is the same as the distance between p and the x-axis.

2) The distance between p' and the y-axis is the same as the distance between p and the y-axis.

From 1 and 2, we get:

3)  The distance between p' and the origin is the same as the distance between p and the origin.

4) As we have a reflection, p' can not be in the same quadrant than p, then p' can not lie on the first quadrant.

in 2013 January there were 360 pupils in school the ratio of boots to girls was 5:4 in February 18 boys were admitted in school how many boys were there in February​

Answers

Answer:

218

Step-by-step explanation:

this is ratio.

5+4=9. which is the ratio you add it.

5/9×360=200

therefore the number of boys in school during 2013 january is 200 plus admitted boys in February is 200+18=218.

therefore the number of boys in school from january to february is 218.

Is 0.75 greater than 7/8

Answers

Answer:

no. 7/8> 0.75

Step-by-step explanation:

7/8 as a decimal is 0.875, which is greater than 0.75

Answer:

false

Step-by-step explanation:

7/8 is greater than 0.75

PLZ HELP ME !!! PLZ. What is N for silicon tetrachloride, SiCl4?

Answers

Answer:

what is n for silicon tetrachloride sicl4. Answer A. Chemical Engineering Q&A Library 30.10 Silicon tetrachloride, SiCl4, is an important chemical used in the manufacture of microelectronic devices. It is usually 8 for most atoms but 2 for hydrogen and heliumA is the number of valence electrons. NO.

Hope this helped

Silicon tetrachloride (SiCl4) is indeed an inorganic compound with the chemical formula SiCl4 that appears as a colorless liquid with a foul smell. It reacts with water, producing white solid silicon dioxide and HCl gas. It's soluble in water.

It erodes both flesh and metal. It is used in the commercial production of high-quality silica. It has high purity and is utilized in the production of optical fibers.In benzene, toluene, and water, it dissolves.It comes in the form of a whitish fuming liquid.This has a melting point of 68.74 degrees Celsius and a boiling point of 57.65 degrees Celsius.The crystal structure is tetrahedral.SiCl4 has a coordination geometry of 4.

Learn more:

brainly.com/question/24049669

what is 0.0001 to a power of 10.

Answers

Answer: 10^-4

Step-by-step explanation:

Hi! I believe your answer is 1×[tex]10^{-40}[/tex], or 0.00000000000000000000000000000000000000001

I hope this helps you! Good luck and have a great day/night. ❤️✨

USE THE RELATIONSHIPS BETWEEN THE ANGLES TO SOLVE FOR Z

Answers

S would be the snot the second power

Solve the right triangle ABC (round to the nearest tenth):

angle B =
a =
b =

Answers

Answer: angle B= 54 degrees, a=6, b=8

Step-by-step explanation:

Add the two angles we have to get 126 degrees. Subtract that from 180 degrees to get 54 degrees.

We don't know enough to say which is which for a and b, but we can know that it is 6 and 8 because of pythagorean triples (3,4,5).

Answer:

Angle B = 54 degrees, a= 5.88 or round it to 6 and b=8.09 or round it to 8

Step-by-step explanation:

Angle B:

A right angle triangle always equals 180 degrees, and the right angle (the corner) equals 90 degrees.

B = 180 degrees - 90 degrees - 36 degrees

B = 54 degrees

a:

a = 10 sin 36 degrees

a = 5.88 or rounded to 6

b:

b = 10 cos 36 degrees

b = 8.09 or rounded to 8

The Brown family is on their way home from a cross-country road trip. During the
trip, the function D(t) = 3,500 - 20t can be used to represent their distance, in
miles, from home after t hours of driving.
What is the value of D(15)?
3200
3465
-3200
174.25

Answers

Answer:

Step-by-step explanation:

D(15) = 3500 -20(15)

D(15) = 3500 - 300

D(15) = 3200

In 15 hours of driving the Brown family is 3200(no unit given) away from home.

9. The difference between two numbers is 24. Find the numbers if their
sum is 88.

Answers

Answer:

The numbers are 56 and 32

Step-by-step explanation:

Let the two numbers be x and y

x - y = 24

x = 24 + y --- ( 1 )

x + y = 88 --- ( 2 )

Substitute ( 1 ) into ( 2 ):

24 + y + y = 88

2y = 88 - 24

2y = 64

y = 32

Substitute y = 32 into ( 1 ):

x = 24 + 32

x = 56

the two numbers are 54 and 32

Can someone explain this to me? You don't have to give me the answer, but just help me understand it.

Answers

Y=mx+b is the slope intercept form so to rearrange that equation it would be y=⅔x-⁵/3

PLEASE HELP ME RIGHT ANSWERS ONLY Your gas-powered weed trimer has a tank that holds 0.72 gallons. If you burn 0.13 gallons every time you trim around your house, how many times can you trim the weeds without refilling the tank?

Answers

Answer:

5 times

Step-by-step explanation:

The tank holds 0.72 gallons, and burn 13 gallons every time. Which means 0.72 divided by 0.13 would be the amount of times you would trim the weeds without refilling the tank. Which in this case the answer is 5.538... so if you round it u would get 5.

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Tip #1: Find the right string trimmer for you.

A few different string trimmers exist to meet the needs of you and your lawn:

Electric string trimmers tend to use lithium-ion batteries at 40 to 80 volts and are clean, quiet, and light. The uncorded versions add mobility to your work; however, corded electric string trimmers don’t require recharge time and are lighter.

Gas string trimmers use gas engines that provide more power than their electric counterparts. These trimmers are cordless and mobile, but you must regularly refuel for continued use. Some gas trimmers require a pull-start to crank, while other models come with an automatic crank.

String trimmer mowers, or walk-behind trimmers, resemble traditional lawnmowers without the size or the spinning blade. String trimmer mowers offer an in-between range for those lawn sections too big or too small for conventional mowers and trimmers.

Tip #2: Take safety precautions when using your string trimmer.

Like lawnmowers, string trimmers use a spinning motion to cut grass and thin wooden plants. For example, trimmers cutting in a counter clockwise spin will eject cut debris in a leftward direction.

Acknowledge the direction of your string trimmer’s spin and position yourself appropriately to avoid harmful debris hitting your body, like rock, glass, plastic, or any other small objects that can go flying when hit by the trimmer’s filament line. Additionally, keep children and pets indoors, or otherwise keep them and others on the opposite side of the eject direction.

Tip #3: Take advantage of spin direction when using your string trimmer.

Though you must heed the spin direction of your string trimmer for safety, the spin direction also commands the best use of your string trimmer. Ensure that your string trimmer ejects material away from your cut path to avoid working over piles of cut material, which drastically reduces the efficiency of your tool and encourages an uneven lawn trimming.

Tip #4: Use a cutting technique that fits the circumstance of your yard.

You accomplish a well-trimmed lawn by handling your string trimmer with precision. String trimmers seem clunky at best, but you can use a few different techniques to get that even cut you want. Mark Clement from Popular Mechanics suggests these methods:

Tapering: To cut along the boundaries of your lawn, angle the string trimmer so that the line cuts somewhat at an angle. You get your best cut toward the tip of the line, Clement explains, so tilting the trimmer slightly down helps cut smaller, more manageable portions while allowing the line to strike at its strongest point.

Edging: This method is useful when you need to cut grass at the edge of a parallel surface, such as a driveway or sidewalk. Instead of tilting the trimmer down, hold the tool so that the line cuts vertically. Clement notes that edging may uproot rocks and dirt and suggests easing these portions of your lawn into the right cut over time if you haven’t edged before.

Scything: Gently swing your string trimmer in a U-shaped pattern to navigate a difficult or obstructed area of the lawn. This method provides manageable trimming, and by overlapping the pattern, you’ll get the even cut you want.

Screeding: Clement explains that this method of using your string trimmer helps cut grass and weeds growing out of sidewalks, driveways, and other paved areas. Angle your string trimmer so that the line tip is hitting the pavement but the rest is slicing close to the base of the weed or grass.

Tip #5: Take care of your string trimmer.

Not unlike other tools, maintaining your string trimmer will keep it operable for years to come. After every use, wipe off grass and dirt debris from the line or replace it when necessary. String replacement is common, especially if you are using your string trimmer frequently. For gas-powered string trimmers, replace the spark plug every three to four months. Finally, empty the gas tank of the trimmer before long-term storage.

If you buy the right string trimmer for your needs, keep it properly maintained, and remember cutting direction for safety and a good cut, you’ll be using your string trimmer like a pro in no time.

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Woodhill Elementary School’s 3rd and 4th-grade classes are planning a joint field trip. There is a total of 464 students in these two grades and only 45 seats per bus. How many buses will be needed to fit all the students? Think carefully about your answer.

Answers

Step-by-step explanation:

i say you would multiply or add

what is 10 h + 6 − 5 h + 3

Answers

Answer:

5h + 9

Step-by-step explanation:

Collect the like terms

10h - 5h + 6 + 3

5h + 9


Given that
3
x

4
y
=
22

Find
x
when
y
=

7

Answers

Answer:

X=-2

Step-by-step explanation:

3x-4(-7)=22     4*-7=-28

3x+28=22 subtract 28 from both sides then you get

3x=-6 divide 3 and -6   then you get

x=-2

HOPE THIS HELPS:))

What is the approximate slope of the line of best fit given by a regression calculator? –0.98 –0.91 0.91 0.98

Answers

Answer:

-0.98

Step-by-step explanation:

Answer:

-0.98 just did the quiz

Step-by-step explanation:

Find a domain and range of each function

Answers

Answer:

a. D={o,1,2}

R={1,1,6}

b. D= {-3,-1,0,2}

R={7,9,7,6}

I'm not sure with b.

6.3952 rounded to the nearest tenth

Answers

The decimal number 6.3952 rounded to the nearest tenth is 6.40.

What is rounding off of numbers?

We round off numbers to make them easier to remember and it also keeps their value approximately to the place it has been rounded off.

To round off any number to any place we'll look for the digit next to that place and if it is equal to or greater than 5 we'll add one to the previous digit and make all the digits after it zeroes and if the digit is less than 5 we do not add one to the preceding digit and simply make all the digit after it to zeroes.

Given, A decimal number 6.3952 and we have to round to the nearest tenth.

To round it to the nearest ten we'll look at the digit at the hundreds place which is 5 so we'll add one to the tens digit and make the digits after that zero.

Therefore,  6.3952 rounded to the nearest is 6.40.

learn more about rounding off of numbers here :

https://brainly.com/question/13391706

#SPJ2

HELP ILL GIVE BRAINLIEST

Answers

Answer:

1 ml per C

Step-by-step explanation:

Each equation has the same rate as well

A.CED. A1

Simone, Teresa, Jesse, Aricka, and Leon are working together to write a quadratic function to represent a parabola that opens downward and has a vertex of (-3, 5).

Simone: LaTeX: s\left(x\right)=-3\left(x-3\right)^2+5
s
(
x
)
=

3
(
x

3
)
2
+
5

Teresa: LaTeX: t\left(x\right)=-\frac{1}{4}\left(x+3\right)^2_{ }+5
t
(
x
)
=

1
4
(
x
+
3
)
2
+
5

Jesse: LaTeX: j\left(x\right)=-3\left(x+3\right)^2+5
j
(
x
)
=

3
(
x
+
3
)
2
+
5

Aricka: LaTeX: d\left(x\right)=\left(x+3\right)^2+5
d
(
x
)
=
(
x
+
3
)
2
+
5

Leon: LaTeX: z\left(x\right)=-2\left(x-3\right)^2+5
z
(
x
)
=

2
(
x

3
)
2
+
5

Select the correct functions.

Group of answer choices

Simone

Aricka

Teresa

Leon

Jesse

None of these

Answers

Answer:

none of these are correct

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