What value of a makes the solution to the equation 5x-10=3x+a equal to 12

Answers

Answer 1

Answer:

a=-1.2

Step-by-step explanation:

5x-10=3x+a=12

let's first find x:

5x-10=12

add 10 to both sides:

5x=22

divide both sides by 5:

x=4.4

now that we know what x is, we can plug it back into the equation to find a:

3*4.4+a=12

first, simplify both sides:

13.2+a=12

then, subtract 13.2 from both sides:

and our answer is: a=-1.2


Related Questions

How long is 10:36 to 11:23​

Answers

Answer:

47 minutes

Step-by-step explanation:

Answer:

47 mins hope this helps

Step-by-step explanation:

25% of a spring basket is peeps.
The total number of items in the
basket is 20. How many of the
items are peeps?

Answers

Answer:

5

Step-by-step explanation:

25% of 20=5

Answer:

5 items are peeps

Step-by-step explanation:

25% is 1/4 of 100%, so divide 20 (your total # of items) by 4, and you get 5, which is 25% of your 20 spring basket items.

Which of the following sets represents the domain of the function shown?
{(2, 7}, (15, 13), (21,-4), (24, 18). {-4, 2, 7, 13, 15, 18, 21, 24}
{(7, 2), (13, 15), (-4, 21), (18, 24)}
{2, 15, 21, 24}
{-4, 7, 13, 18}

Answers

Answer:

(2, 15, 21, 24)

Step-by-step explanation:

Domain the x values

3x² + 2x + 2 + 4x² + 5​

Answers

Answer:

7x^2 + 2x + 7

Hope this helps :)

Answer:

7x²+2x+7

Step-by-step explanation:

Hope this helps. Plz give brainliest.

Find the equation of the line with slope −2 which goes through the point (9,−7).

Answers

Answer:

Here,

slope (m)=-2

y- intercept (c)=-7

Now,

The equation of the line;

or,y=mx+c

or,y= -2x-7

or,2x+y+7=0 is the required equation....

Answer: y = -2x +11

Step-by-step explanation:

ASAP HELP PLEASE WILL GIVE BRAINLIEST

The perimeter of a rectangle
is 40 centimeters. The length of the rectangle can be represented by (2x + 1), and its width can be represented by (x - 5). What is the
length of this rectangle in centimeters?

Answers

Answer:

17cm

Step-by-step explanation:

equation:

[tex]2(2x + 1) + 2(x - 5) = 40 \\ x = 8 \\ [/tex]

substitute 8 into

[tex](2x + 1)[/tex]

[tex]2(8) + 1 = 17[/tex]

[tex]lenghth = 17cm[/tex]

2x²-2x=12
quadratic equation​

Answers

x=3,-2 you solve by using the quadratic formula

You can solve with many ways but I'll do this one instead. Move 12 to the left side and change from positive to negative.

[tex]2x^2-2x-12=0\\[/tex]

Then divide by 2 whole equation.

[tex]\frac{2x^2-2x-12}{2}=\frac{0}{2}[/tex]

Simplify, as we get  [tex]x^2-x-6=0[/tex]

We can either use Quadratic Formula or Factoring the Polynomials. It depends but since the polynomial aren't that hard to factor because it doesn't have that many numbers in value. So using factoring will be faster.

From [tex]x^2-x-6=0[/tex] we can factor as -

[tex](x-3)(x+2)=0\\x-3 =0, x+2=0\\x=3, x=-2\\(x=3,-2)#[/tex]

Thus, the value of x is 3 or -2. So x = 3, -2 is the answer.

Note that we can also use Quadratic Formula to solve the equation, however that will take longer than factoring then solve the equation.

PLEASE HELP ME ANSWER THIS
What is cos 60?

Answers

Answer:

The angle with measure 60° is one of those angles that has a well-known cosine value: cos(60°) its C= 1/2.

Step-by-step explanation:

cos(60°) =[0; 2] and cos^2=[0; 4] so cos 60°=1/2

At a particular sea level location at a particular time the atmospheric pressure is 14.8 lbs/in^2 and the temperature is 80 degrees F. Estimate the temp, pressure , and air density at an altitude of 8,000ft? 18,000 ft? Note: You must modify the standard atmosphere model using the given values for sea level air pressure and temperature

Answers

Answer:

(a) At 8,000 ft :

The air  temperature is 30.52  °F

The air pressure is 1574 lbs/ft²

The air density is 1.869 x 10⁻³ slug/ft³

(b)  At 18,000 ft :

The air temperature is -5.08  °F

The air pressure is 1059.2 lbs/ft²

The air density is 1.356 x 10⁻³ slug/ft³

Step-by-step explanation:

Given;

pressure at sea level, P₀ = 14.8 PSI

temperature, T' = 80 °F

At 8,000 ft (m) altitude

for altitude h, less than 36,152 ft, the following model is used to modify temperature and pressure;

T = 59 - 0.00356h

T = 59 - 0.00356(8,000)

T = 30.52  °F

The pressure is calculated as;

[tex]P = 2116[\frac{T+459.7}{518.6} ]^{5.256}\\\\P = 2116[\frac{30.52+459.7}{518.6} ]^{5.256}\\\\P = 1574.2 \ lbs/ft^2[/tex]

The density is given by;

[tex]\rho = \frac{P}{1718*(T+459.7)}\\\\\rho = \frac{1574.2}{1718*(30.52+459.7)}\\\\\rho = 1.869*10^{-3} \ slug/ft^3[/tex]

For 18,000 ft

T = 59 - 0.00356h

T = 59 - 0.00356(18,000)

T = -5.08 °F

The pressure is calculated as;

[tex]P = 2116[\frac{T+459.7}{518.6} ]^{5.256}\\\\P = 2116[\frac{-5.08+459.7}{518.6} ]^{5.256}\\\\P = 1059.2 \ lbs/ft^2[/tex]

The density is given by;

[tex]\rho = \frac{P}{1718(T+459.7)} \\\\\rho = \frac{1059.2}{1718(-5.08+459.7)}\\\\ \rho = 1.356*10^{-3} \ slug/ft^3[/tex]

help as soon as possible pleaseee

Answers

Answer:

(3x + 2)(x-4)

Step-by-step explanation:

3x² - 10x - 8 = 0

(splitting the middle term)

3x² -12x + 2x -8 = 0

3x(x-4) + 2(x-4) = 0

(3x + 2)(x-4) = 0

(3x + 2)(x-4) is the correct answer (option a)

Factor by grouping so your answer you be #1 (3x +2)(x-4)

I need to find the answers to 5-9 sorry for bad quality

Answers

Answer: 5: y=7/8x+1

              6: y=-10x

              7: y=2.5x-7

              8: y=1.2x

              9: y=-5x-8

Step-by-step explanation:

There you go. You are welcome.

Find the value of X
40°

(12x-8)



please help I have 10 mins left on my test

Answers

Answer:

B.4  12x-8 would be 12x_-8=40   this is because 12x-8 is congruent to the 40 degree angle. so what -8 is 40?  48   12x_=48   x=4   12x4=48  48-8 is 40

plz let me know if i am wrong mark brainliest if right

Step-by-step explanation:

El primer término en una secuencia es 5 y el quinto término es 17. ¿Cuál es la diferencia común

Answers

The common difference of this Sequence is 12.

In mathematics, a sequence refers to an ordered list of numbers. When working with sequences, there are various concepts and formulas that are used to calculate different aspects of the sequence. One such concept is the common difference. Let's explore what the common difference is and how to calculate it.
What is the common difference?
The common difference in a sequence refers to the difference between any two consecutive terms in the sequence. For example, in the sequence 2, 4, 6, 8, 10, the common difference is 2. We get this value by subtracting the second term (4) from the first term (2) and so on.
How to find the common difference of a sequence?
To find the common difference of a sequence, you need to know at least two terms of the sequence. You can then subtract one term from the other to calculate the common difference.
Let's apply this to the given sequence, which has a first term of 5 and a fifth term of 17. To find the common difference, we can subtract the first term from the fifth term as follows:
17 - 5 = 12
Therefore, the common difference of this sequence is 12.

For more questions on Sequence .

https://brainly.com/question/26263191

#SPJ8

Pls help xdcdcdcdcdcd

Answers

Answer:

A

Step-by-step explanation:

YESYESYESYESYESx85

Plzzzzzzzz help right answer gets brainly

Answers

Answer:

20

Step-by-step explanation:

5k = 100

To figure out k, divide both sides by 5. Cancel out 5 from 5k, and you’re left with k=100/5
Simplify, and you’re left with k=20

nnnnnnnnnnnnnnnnnneeeeeed

Answers

Answer: x 3

Step-by-step explanation:

x3 because you want the remove the fraction and make it a whole number. So x=45 would be the answer but x 3 is the operation.

Ron has 198 feet Of fencing to make a rectangular garden in his backyard. He wants the length to be 19 feet more than the width. Find the width?

Answers

Answer:

68.5

Step-by-step explanation:

u do 198 divided by 4 then add 19 to the awnser that u got

Answer:

width = 40 feet

Step-by-step explanation:

If w = width, then l = 19 + w

l = 19 + w

2l + 2w = 198

"Substitute 19 + w as l in the second equation"

2(19 + w) + 2w = 198,

38 + 2w + 2w = 198,

38 + 4w = 198,

4w = 198 - 38 = 160,

w = 160/4 = 40 feet

=> Solution: width = 40 feet

help please below is the Screen shot of what I am working on

Answers

Answer:

i think the answer is #2 or B.

Step-by-step explanation:

ad+cb over bd  ad+cb/bd

-2(k+12)=2k + 16


Show work

Answers

Answer:

k=-10

Step-by-step explanation:

[tex] - 2k - 24 = 2k + 16[/tex]

[tex] - 2k - 2k = 16 + 24[/tex]

[tex] - 4k = 40[/tex]

[tex]k = 40 \div - 4 = - 10[/tex]

i think this is the answer

‼️‼️Evaluating expressions with integers‼️‼️ PLEASE I NEED THEM NOW ITS 9:19 AND ITS DUR AT 8:00 AM I NEED SLEEP ANYONE PLEASR HELP‼️‼️

Answers

1a = 0

1b= 9/8

2a= -49

2b= -1/6

3a= 5/2

3b= 1

4a= 1/10

4b= 4/3

5a= -1/2

5b= -4/7

1a - 0
1b - 9/8
2a - -49
2b - -1/6
3a - 2 1/2
3b - 1
4a - 1/10
4b - 1 1/3 or 4/3
5a - 1/2
5b - -4/7

Last year’s computer models are discounted 20%. What was the original price to the nearest dollar of a computer that now costs $1,480?

$1,184

$1,500

$1,510

$1,850

Answers

Answer:

x=$1850

Step-by-step explanation:

Let the original price of the computer model is x.

Last years discount is 20%

We need to find the original price if the computer now costs $1480.

ATQ,

[tex]x-20\%\ \text{of x}=1480\\\\x-\dfrac{20x}{100}=1480\\\\x-\dfrac{x}{5}=1480\\\\\dfrac{4x}{5}=1480\\\\x=\dfrac{1480\times5}{4}\\\\x=\$1850[/tex]

So, the original cost of the computer model is $1850.

Classify the four angles of the quadrilateral

Answers

Answer:

<A= right

<B= obtuse

<C= acute

<D= obtuse

Step-by-step explanation:

11.07 pt = mL can i have help

Answers

Answer:

6290.652

Step-by-step explanation:

Volume

11.07   Pint

=   6290.652  Milliliter

Formula

for an approximate result, multiply the volume value by 568

i wish this is the ans ur looking for.......

Solve. Enter your answer as an inequality.
4x + 5 < 5x + 3
w

Answers

Step-by-step explanation:

4x+5<5x+3

4x=-5<5x=-3

x=-5/4<x=-3/5

1.25<0.6

Do I have the right anwer if not what is it

Answers

Answer:

yes

Step-by-step explanation:

its rightsss

Answer:

Yes

Step-by-step explanation:

Find and simplify as much as possible. Let f(x)=x^2+2 be for f(x+h)-f(x)/h

Answers

Answer:

In picture

Step-by-step explanation:

Use the given functions to set up and simplify

what is the number in scientific notation? ​0.000000000093 enter your answer in the box.​

Answers

Answer:

9.3 × 10^-11

Step-by-step explanation:

Please answer as fast as you can.
what is 30 + 5(2x -1) + 20

Answers

Answer:

10x + 55

Hope this helps :)

the answer is 40 brainliest plz

Please help and give the explanation!!

Answers

Answer:

x = 11

Step-by-step explanation:

If A were parallel to B, alternate exterior angles would be congruent.

Equation:

5x + 9 = 6x - 2

9 + 2 = 6x - 5x

11 = x

Hope this helps!

Let me know if you clarification :)

Answer:

x = 11

Step-by-step explanation:

If both lines were parallel, then the angles with labels would be alternate angles between parallel lines, which will make them equal in measure.

so the measure of one (5x+9) would equal the measure of the other one (6x-2) which in math terms becomes:

5 x + 9 = 6 x - 2

subtract 5x from both sides:

9 = x - 2

add 2 on both sides

x = 11

3x-2y=2
i always get mixed up in the final answer y=1 -3/2x 0r y= 1 +-3/2x ?

Answers

Answer:

Both answers are correct

Step-by-step explanation:

both y = 1 - 3/2x and y = 1 + -3/2x are correct answers, it is just that y= 1 - 3/2x is the simpler version. Adding a negative number is the same as subtracting a positive.

Answer:

y=3/2x-1

Reasoning:

-3x was negative initially, but dividing by -2 made it positive
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