Mathematics High School

12x -20=n (3x-5)

I need help I don’t get it please help me.

Answers

Answer 1

Answer:

The value of n = 4 and  

The value of x = [tex]\frac{5}{3}[/tex]

Step-by-step explanation:

Method I:

As given, 12x -20=n (3x-5)      .........(1)

Firstly , take 12x - 20

As 12x - 20 can be written as 4(3x - 5)

∴ equation (1) becomes

4(3x - 5) = n (3x-5)

Divide the equation by (3x-5) , we get

4 = n

Method II:

As given, 12x -20=n (3x-5)

⇒12x - 20 = 3nx - 5n

⇒12x - 3nx = 20 - 5n

⇒3x(4 - n) = 5( 4 - n)

Divide the equation by (4-n) , we get

3x = 5

⇒ x = [tex]\frac{5}{3}[/tex]

∴ we get

n = 4 and  x = [tex]\frac{5}{3}[/tex]

Now, check that value of n and x satisfies the equation or not

12([tex]\frac{5}{3}[/tex]) - 20 = 4( 3([tex]\frac{5}{3}[/tex]) - 5)

⇒4(5) - 20 = 4(5 - 5)

⇒20 - 20 = 4(0)

⇒ 0 = 0

Hence , we get

The values of x and n satisfies the equation

so, we get

n = 4 and  x = [tex]\frac{5}{3}[/tex]

Related Questions

Evaluate the expression when a=4 and y=-6.
a-7y

Answers

Answer:

46

Step-by-step explanation:

(4) - 7(-6)

4 + 42

46

Level 6
1.) Find the value of 5x - 6y when x=-2 and y = 3.​

Answers

Answer:

-28

Step-by-step explanation:

[tex]5x - 6y \\ \\ = 5( - 2) - 6(3) \\ \\ = - 10 - 18 \\ \\ = - 28[/tex]

Cross-multiply 9 cups / 15 people = ? cups / 75 people.

Answers

Answer:

The answer would be 45 cups/ 75 people

The graph of the piecewise function f(x) is shown.
What is the domain of f(x)?

Answers

Pretty sure it’s the first option

Answer:

its the first one

What is the value of 6 + 2x when x = 5?
04
O 13
O 16
0 40

Answers

6+2*5 (first multiplication) so 2*5=10
And then you just add 6+10
So it’s 16

A circular "No U-Turn" road sign has a diameter of 20 inches.
Which measurement is closest to the area of the sign in square inches?
O 62.8 in 2
0 125.6 in 2
O 314 in.
O 1256 in 2

Answers

Answer:

314

Step-by-step explanation:

d=20

20/2=10

10x10=100

A=pi r2

A=3.14x100

A=314

Can someone explain the process of getting to Angle A? I know the answer is 44.1 but I need to show my work so can someone show me the process of getting the answer and please explain! Thank you!!

Answers

Answer:

Step-by-step explanation:

First you have to calculate CB in order to use sin law to calculate ∠A

CB=[tex]\sqrt{18.4^{2} -13.2^{2} }[/tex]

CB=12.8(correct to nearest tenth)

After that, use sin law to calculate ∠A,

[tex]\frac{18.4}{sin90} =\frac{12.8}{sinA}[/tex]       or    [tex]\frac{sin90}{18.4} =\frac{sinA}{12.8}[/tex]

sinA=0.695...

A=44.079...

  =44.1(corrext to the nearest tenth)

Is that clear enough for you?

A species of endangered tigers has a population in 2020 of about 900, and that number is expected to
decline by about 4% each year. If this rate continues, what would we predict the tiger population to be in
2039?

Answers

I think the answer is 9595? Because 2020+19 is 2039. And 2020 divided by 4 is 505 therefor, 505x19 is 9595. I think its kind of wrong but uhh HELLO

Two pieces of ribbon, one with a length of 63 inches and another with a length of 42 inches are cut into pieces of equal length without remainder. Find the greatest possible length that the pieces can be.

Answers

Answer

224 over 567

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

the greatest possible length that the two ribbons would be when the ribbons are divided by their lowest common multiple.

The lowest common multiple of 63 is 3. 63/3 = 21

The lowest common multiple of 42 is 2 = 42/2 = 21

como es la tierra redonda o plana?

Answers

Answer:

plnaa

Step-by-step explanation:

Answer:

redonda

Step-by-step explanation:

y = 2x - 4
y = x + 1


solving by substitution, can any tell me what x and y equal?​

Answers

Answer:

y=6 and x=5

Do you like BTS?

please help will give brainliest PLEASE​

Answers

Answer:

b

Step-by-step explanation:

Subtract 2a from - 4a + b

Answers

Answer:-4a+b-2a

-6a +b

Step-by-step explanation:

Answer:

- 6a + b

Step-by-step explanation:

- 4a + b - 2a ← collect like terms

= - 6a + b

— 9a3. — Зазь
simplify

Answers

Answer:

-3a(9+3b)

Step-by-step explanation:

-9a3-3a3b

= -27a-9ab

= -3a(9+3b) answer

Under her cell phone plan, Peyton pays a flat cost of $48 per month and $3 per gigabyte. She wants to keep her bill at $60.60 per month. Write and solve an equation which can be used to determine gg, the number of gigabytes of data Peyton can use while staying within her budget.

Answers

Answer: 4.20 gigabyte

Step-by-step explanation:

Based on the information given in the question, the equation that can be used to determine the the number of gigabytes of data Peyton can use while staying within her budget will be:

48 + 3g = 60.60

3g = 60.60 - 48

3g = 12.60

g = 12.60/3

= 4.20

The number of gigabytes of data is 4.20g

Answer:

Equation: 3g+48=60.6

Answer: g=4.2

Dio can run 5 meters in 0.1 seconds using "The World". How much further
will Dio move from Jotaro if he can move for 4 seconds?

Answers

Answer:

If Dio Brando can run 5 meters in 0.1 seconds using Za Warudo he will move 200 meters closed to jotaro in 4 seconds although he can just stop time and move 200 meters closer to jotaro in 0.1 seconds

Step-by-step explanation:

Im cool

Answer:

ZA WARUDO TOKI YO TOMARE

Step-by-step explanation:

ROAD ROLLA DA!!!!!!!!!!!!!


MUDAMUDAMUDAMUDAMUDAMUDA
MUDAAA!!!!!!!!!!!!!!!!

y=3x + 4 Find the value of y when x=4

Answers

16

its 16 because you’d rewrite the equation as y=3x4+4

Savannah is making a quilt with squares that have side lengths of 15/16 foot each. Are the side lengths of the squares closer to 1/2 foot or 1 foot long? ​

Answers

Answer:

1 foot long

Step-by-step explanation:

If this fraction is closer to one it will be close to 16/16. And since 8 is half of 16, any fraction that is around 8/16 is closer to 1/2. 15 is closer 16 so this fraction is closer to one.

The side lengths of the squares is closer to 1 foot when rounded to the nearest foot length

What is rounding up numbers?

There are basically two rules while rounding up numbers

If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down and if the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up.

Non-zero digits are always significant

Zeros between non-zero digits are always significant

Leading zeros are never significant

Trailing zeros are only significant if the number contains a decimal point

Given data ,

Let the side lengths of the squares after rounding be represented as A

Now , the value of A is

The side lengths of the quilt with square shape be = 15/16 foot

Now , on rounding the value 15/16 , we get

A = 0.9375 feet

And , the value of A is much closer to 1 foot

Therefore , the value of A is 1 foot

Hence , the side lengths of the squares after rounding is 1 foot

To learn more about rounding up of numbers click :

https://brainly.com/question/4896544

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If QRS = MNP, QR = 11, QS = 15, MP = 2x + 1, S = 84, R = 32, and M = (17y - 4),

find the values of x and y.

pls answer quick

Answers

Answer:

x = 7 and y = 4

Step-by-step explanation:

If QRS = MNP, then QR = MN, RS = NP and QS = MP

Given

QR = 11

QS = 15

MP = 2x + 1

Recall that QS = MP

15 = 2x+1

2x = 15-1

2x = 14

x = 14/2

x = 7

Similarly

<Q = <M

<Q + <R + <S = 180

<Q + 32 + 84 = 180

<Q + 116 = 180

<Q = 180 - 116

<Q = 64 degrees

Since <M = 17y - 4

64 = 17y - 4

17y = 64+4

17y = 68

y = 68/17

y = 4

Hence x = 7 and y = 4

what is 98+65*45t=98t^2+55x

Answers

Answer:

x= 98/55 + 585t/11 - 98t^2/55

Step-by-step explanation:

Answer:

are you trying to solve for T or X?

Step-by-step explanation:

A rectangle is drawn so that the width is 3 feet shorter than the length. The area of the rectangle is 10 square feet. Find the length of the rectangle.

Answers

It’s 7929281 becuase idc
length=5ft
width= 2ft

10ft=l x w
w= l -3

10ft= l(l-3)
0= l^2 -3l-10
0= (l-5)(l+2)
l=5, l≠-2 (because a measurement can’t be negative)

w= 5-3
w=2

calculate 5/7 x 1203
also can somebody help me cheat on a spanish test

Answers

Answer:

5/7 x 1203=6015/7=859.28

Step-by-step explanation:

i know best one.keep in mind.

2(8 +0.5) + 2(5 +1.5)

Answers

Answer:

30

Step-by-step explanation:

Kira buys 5 pounds of squash for ​$4.65 and 3 pounds of cabbage for​ $3.28. How much does one pound of squash​ cost?

Answers

Answer:

One pound of squash is 93 cents

Step-by-step explanation:

Divide: 4.65 divided by 5=93

93 cents

Hope this helped!! :)

Stay safe and have a wonderful day/afternoon/night!!!

Brainliest?!?!

Walter invested some money at 5% simple interest for 3 years and earned $300. What was the amount he invested?

Answers

the young lad invested 6000$

Answer:2000

Step-by-step explanation:

-2x + y = 3
what does x equal​

Answers

Answer:

Step-by-step explanation:

-2x+y=3

-2x=3-y

x=[tex]\frac{3-y}{-2}[/tex]

Find the product and simplify.
(k+ 4)(-4k – 5)

Answers

The answer is -4k^2 - 21k - 20! so sorry if I’m wrong but it’s the answer I got :>

What is the y-intercept of the graph of the line given by the equation 3y + 4x = 15
A. 5
B. 4
C. 3
D. -4/3

Answers

Answer:

It would be 5

Step-by-step explanation:

What is the y intercept of the line perpendicular to the line y=-3/4x+5 that includes the point (-3,-3)

Answers

So the y intercept is at +5 so you’d draw a line going through (-3, -3) and make it cross the y-intercept which is at (0, 5) and you should be good

The line perpendicular to the line y=-3/4x+5 that includes the point (-3,-3) is y=-4/3x-7.

What is the equation of a line?

The general equation of a straight line is y=mx+c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis.

The given equation of a line is y=-3/4x+5 and the coordinate point is (-3, -3)

Here, slope of a line is -3/4.

The slope of a line perpendicular to given line is m1=-1/m2

Now, the slope of a line is -4/3

Substitute m= -4/3 and (x, y) =(-3, -3) in y=mx+c, we get

-3=-4/3 (-3)+c

c=-7

Substitute m= -4/3 and c=-7 in y=mx+c, we get

y=-4/3x-7

Therefore, the line perpendicular to the line y=-3/4x+5 that includes the point (-3,-3) is y=-4/3x-7.

To learn more about the the equation of a line visit:

https://brainly.com/question/2564656.

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what is the value of 4|b| - |D|

Answers

Answer:

4b-d

Step-by-step explanation:

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