Mathematics High School

Solve the equation for x.​

Solve The Equation For X.

Answers

Answer 1

Answer:

x = 5

Step-by-step explanation:

4(x-1)/8 = 2(x+2)/7

7*4(x-1) = 8*2(x+2)

28(x-1) = 16(x+2)

28*x + 28*-1 = 16*x + 16*2

28x - 28 = 16x + 32

28x - 16x = 32 + 28

12x = 60

x = 60/12

x = 5

Check:

4(5-1)/8 = 2(5+2)/7

4*4/8 = 2*7/7

16/8 = 2*1 = 2

Related Questions

if angle ABC=2x and angle CBD=4x and they are a linear pair, solve for x

Answers

2x+4x=180(linear pair)
->x=30

Complete the last step by simplifying the expression square root of 180What is simplified?

Answers

Answer:

about 13.

Step-by-step explanation:

sqrt of 180=13.416...

Answer:

6√5

Step-by-step explanation:

180=[tex]2^{2} *3^{2} *5[/tex]. So we can say that 180=6•6•5. So, √180=6√5.

Please I will give brainylest if the answer is correct

Answers

Answer:

a^n +3

Step-by-step explanation:

simpify: a^na^3:\quad a^{n+3}

a^{n+3}

What is the y-intercept of y = 4x?

Answers

Answer:

It depends on what x is

Step-by-step explanation:

I cant help

Answer:

0

Step-by-step explanation:

well if its just 4, then that means it doesnt have a y value

What is 6^4 x 6 1/4????

Answers

Answer:

8100

Step-by-step explanation:

The expression (x3)(x-15) is equivalent to xn. What is the
value of n?

Answers

Answer:

-45 is xn

The x=3 and x=-15 multiply them together which is the answer to xn

The 10th power of t

Answers

Answer:

t¹⁰

Step-by-step explanation:

The 10th power of t:

t¹⁰

Pls help with this asap

Answers

Answer:

Step-by-step explanation:

5227 in ^3
Hope this helps

asap I have 3 minutes

Answers

The second choice is the answer

Jay is 3 years less than 4 times Nelly’s age ( n ). Which expression represents Jay’s age?

Answers

Answer:

9

Step-by-step explanation: 3x4= 12  -3=9

Answer:

what's nelly's age

Step-by-step explanation:

4x divided by 3?


(a) (4,4) is a point on a locus whose equation is y2 = kx. Show that (16,8) is another point on the locus.
(b) (2,3) is a point on a locus whose equation is 5x +by= 16. Show that (0,8) is another point of the locus​

Answers

Step-by-step explanation:

plug the coordinate points into the equations and solve for the remaining variable.

b) (2,3) - 5(2) + b(3) = 16

10 + 3b = 16. 3b= 6. b = 2

(0,8) - 5(0) + 2(8) = 16. 0+ 16 = 16. ☆

a) (4,4) assume based on results you meant y squared. (y^2)

(4)^2 = 4k. 16 = 4k. k = 4

(8)^2 = 4(16). 64 = 64. ☆

Answer:

Please check the explanation.

Step-by-step explanation:

a)

Given

(4,4) is a point on a locus whose equation is y²=kx

Putting (4, 4) in y²=kx

(4)² = k(4)

16 = 4k

k = 16/4

k = 4

Checking the point (16, 8) on the locus

y²=kx

Putting (16, 8) and k =4 in y²=kx

y²=kx

(4)² = 4×4

16 = 16

L.H.S = R.H.S

Therefore, (16, 8) is another point on the locus.

b)

Given

(2, 3) is a point on a locus whose equation is 5x +by= 16

Putting (2, 3) in 5x +by= 16

5x+by=16

5(2)+b(3)=16

10+3b=16

3b=6

b=6/3

b=2

Putting (0, 8) and b=2 in 5x +by= 16

5x +by= 16

5(0)+2(8)=16

0+16=16

16=16

L.H.S = R.H.S

Therefore, (0, 8) is another point on the locus.

x/4 + 9 = 5
Solve for x

Answers

Hol up I no this wait really quick

Answer:

-16

Step-by-step explanation:

x/4 + 9 = 5

move 9 to the other side

x/4= -4

multiply both sides by 4

x=-16

(5)(2)(-6) you must simplify

Answers

Answer:

-60 wdym simplify

Step-by-step explanation:

Question 10
Evaluate 122 – 3 [4 () – (18)].

Answers

Answer:

here is the answer -(12)/(-3)

Step-by-step explanation:

PLEASE MARK BRAINILIEST!

Jake has a container in the shape of a rectangular prism.The base of the container is 30 centimeters long and 20 centimeters wide. Jake pours 0.5 gallons of water into centimeters, how high, in centimeters,will the water reach the container?Note that 1 gallon is approximately equal to 3.8 liters and 1cm3 of volume can hold 1 million of water

Answers

Answer:

40 centimeters

Step-by-step explanation:

I WILL MARK BRAINIEST

Answers

Answer:

PARELLEL

Step-by-step explanation:

Line e and f are parallel. They don't meet. PLEASE MARK ME BRAINLIEST

Alicia is setting up a volleyball net and needs to support the posts with a rope. The volleyball post is 8 feet tall and Alicia placed a stake 6 feet from the
base of the post. The rope needs to reach from the top of the post to the stake. How long does the rope need to be?

Answers

According to my examination I have confirmed that I do NOT repeat do NOT know the answer to this question. Good luck!

Answer: answer is 10

Step-by-step explanation:

8 x 8 = 64

6 x 6 = 36

64 + 36 = 100 cm2

100 cm2 = 10

14. Devon has an area rug with a width 3 feet less than its length, l. He has purchased a larger rug to fit into his new dorm room. Both length and width of Devon's new rug are 2 feet longer than the original. Find the simplified expression of the perimeter and the NEW rug.​ plsssss help.me show work

Answers

Answer:

Perimeter of the new rug   = 4x+2 feet

Step-by-step explanation:

Let the length be x feet and the width of the first rug will be x- 3 feet

Area = length * breadth = x * (x-3) = x²- 3x

Length of the new rug = x+2 feet

Width of the rug = x+2-3= x-1 feet

Perimeter of the recatngle = 2( length + breadth)

                                             = 2( x+2 + x-1)

                                               = 2 (2x+1)

                                                = 4x+2 feet

how do you solve
x-3y=-5
x+3y=1

Answers

Answer:

I got you fam

Step-by-step explanation:

First One:

x -3y = -5

x = -5 + 3y

Or

x -3y = -5

-3y = -5 -x

y = 5/3 + x/3

Second one:

x +3y = 1

x = 1 - 3y

Or

x + 3y = 1

3y = 1 -x

y = 1/3 - x/3

Use elimination
x - 3y = -5
x + 3y = 1
Subtract both sides
-6y = -6, y = 1
x - 3(1)= -5
x - 3 = -5, x = -2
Final answer: x = -2, y = 1

G is the circumcenter. Find BG if BG =(2x-15)

Answers

Answer:

-30

Step-by-step explanation:

i am not sure just remember getting taught it.

Brielle's piggy bank has all nickels and dimes. The total value of the money in her piggy bank is
$7.80. If Brielle has 66 nickels, write and solve a linear equation to find the number of dimes she
has.
What’s the linear equation

Answers

Answer:

Step-by-step explanation:

7.80=66(.05)+.10(x)

7.80=3.30+.10(x)

7.80=3.30+.10x

4.50=.10x

x=45

Check

66 nickels at .05=3.30

45 dimes at .10= 4.50

3.30+4.50= 7.80

Grace and Zoe like to jump rope grades jump 66 times a minute Zoe jumps 56 times a minute they both Count Their jumps today and together they jump 1266 times in the total of 21 minutes how long did each girl jump

Answers

Answer:

Grace jumps for 9 minutes.

Zoe jumps for 12 minutes.

Step-by-step explanation:

Let the time for which Grace jumps the rope = [tex]x[/tex] minutes

Let the time for which Zoe jumps the rope = [tex]y[/tex] minutes

As per question statement:

[tex]x+y=21 ..... (1)[/tex]

Number of times Grace jumps in one minute = 66

Number of times Zoe jumps in one minute = 56

Number of times Grace jumps in [tex]x[/tex] minutes = 66

Number of times Zoe jumps in [tex]y[/tex] minutes = 56

As per question statement:

[tex]66x+56y=1266 ...... (2)[/tex]

Multiplying equation (1) with 66 and subtracting equation (2) from it:

[tex]10y = 1386 - 1266\\\Rightarrow 10y=120\\\Rightarrow y =\bold{12\ min}[/tex]

By equation (1):

[tex]x=21-12=\bold{9\ min}[/tex]

Therefore, the answer is:

Grace jumps for 9 minutes.

Zoe jumps for 12 minutes.

A town has a population of 10000 and grows at 5% every year. What will be the population after 5 years, to the nearest whole number?

Answers

Answer:12500

Step-by-step explanation:

10000 x 5% = 500. 500 x 5 = 2500. 10000 + 2500 = 12500

Answer:

12763

Step-by-step explanation:

Got it right on deltamath.

Solve for the missing arc measure, angle measure, or variable.

m < C is how many degrees??

Pls help! I’ll give brainliest!

Answers

Answer:

m<C I believe is 25 degrees

Step-by-step explanation:

Answer:

the answer is 25 degrees

Number 2.
A homeowner is wanting to pave his
drive way. He was quoted for every 240
bricks it would cost $30. Find the unit
rate.

Answers

240/30 is 8 i believe the answer is 8

What is the area of the triangle?
10 km
10 km
square kilometers

Answers

The answer is 50 because the formula for the area of a triangle is base x hight x 1/2. So if we plug both the 10s into the formula you get 10x10 which = 100 then divide that by 2 and you get 50. Hope it helps :)

WILL GIVE BRAINLIEST!!!!!!1
Consider this system:
3x + 1/2y = 3
6x - y = 2
Which of the following operations would eliminate the y-terms if the two equations were added together afterward?

A. Multiply the first equation by -2.

B. Multiply the first equation by 2.

C. Multiply the second equation by -2.

D. Multiply the second equation by 2.

Answers

Answer:

B. Multiply the first equation by 2

hope this helps tell me if you need more :)

Multiply the first equation by 2 then the variable y will be eliminated. Then the correct option is B.

What is the linear system?

A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.

Consider this system:

3x + 1/2y = 3 ...1

6x - y = 2     ...2

The operations would eliminate the y-terms if the two equations were added together afterward will be

Multiply the first equation by 2. Then we have

6x + y = 6

6x -  y = 2

Add the above equations, then we have

12x = 8

y is eliminated.

More about the linear system link is given below.

https://brainly.com/question/20379472

#SPJ2

ASAP FOR BRAINLIEST!

Answers

Answer:

-4

Step-by-step explanation:

down 4, right 1

-4/1

Answer:

-4

Step-by-step explanation:

Points: (-1,3) and (0,-1)

m = y2 - y1/x2 - x1

m = -1 - 3/0 - (-1)

m = -1 - 3/0 + 1

m = -4/1

m = -4

Hey I am super confused about the equation below. plzz help!!!

Answers

Answer:

50.

Step-by-step explanation:

12 x 45 = 540. 45 + 5 = 50.

If 25⋅26=n, then which division equation is also true?



n÷26=25

26÷25=n

25÷n=26

25÷26=n

Answers

9514 1404 393

Answer:

  n÷26=25

Step-by-step explanation:

Starting with the equation ...

  25·26 = n

you can divide both sides of it by 26 to get ...

  25 = n ÷ 26 . . . . matches choice A

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