X=8,2x+y=12 solve by substitution show work

Answers

Answer 1

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Let's substitute the value of x as 8 in the given equation to find the value of y ~

[tex] \sf2x + y = 12[/tex]

[tex] \sf(2 \times 8) + y = 12[/tex]

[tex] \sf16 + y = 12[/tex]

[tex] \sf y = 12 - 16[/tex]

[tex] \sf y = - 4[/tex]


Related Questions

50+10+23×61×80 please help mee!!​

Answers

Answer:

112300

Step-by-step explanation:

50+10+23*61*80

=60+23*61*80

=60+112240

=112300

The answer 112300, hope this helped :)

Answer:

I think the answer is 112,300.

write an algebraic expression for the word expression.
the sum of 9 and a number x​

Answers

Answer:

9 + x

Step-by-step explanation:

i think this is what you meant

Answer:

Write each phrase as an algebraic expression. In Example 2, each algebraic expression consisted of one number, one operation and one variable.

...

Algebraic Expressions With Example Problems and Interactive Exercises.

Phrase Expression

the sum of nine and a number x 9 + x

Step-by-step explanation:

Hopes this helps\

Mark as brainliest

Helpppppppppppppppppppppppppp

Answers

Answer:

The first one.

WILL GIVE BRAINLIEST
IN a certain chemical the ratio of zinc to copper is 3 to 11 a jar of the chemical contains 385 grams of copper how many grams of zinc does it contain?

Answers

Answer:

105 grams

Step-by-step explanation:

385/11=35

35 times 3 is 105 grams

Answer:

35 grams

Step-by-step explanation:

3/11= x/385

11x= 385

x= 385/11

= 35 grams

what is the difference between a population distribution and a sampling distribution

Answers

The difference between a population distribution and sampling a distribution

Definition: The Population Distribution is a form of probability distribution that measures the frequency with which the items or variables that make up the population are drawn or expected to be drawn for a given research study.

Defintion: The Sampling Distribution is a form of probability of a random sample out of a group of frequency which is made up of the sample of which the population has been picked out of, making it a partial research study

8. If the weights of males are normally distributed with mean = 170 and standard deviation = 20, what weight (to the nearest
pound) would correspond with the 40th percentile?
A) 68
B) 165
C) 175
D) 162
E) none of the above

Answers

Answer:

E. none of the above

Step-by-step explanation:

20 doesnt fit any of these answers

If log x+y/5 = 1/2(log x + log y) the find the value of x/y + y/x ?​

Answers

Given that

log (x+y)/5 =( 1/2) {log x+logy}

We know that

log a+ log b = log ab

⇛log (x+y)/5 =( 1/2) log(xy)

We know that log a^m = m log a

⇛log (x+y)/5 = log (xy)^1/2

⇛log (x+y)/5 = log√(xy)

⇛(x+y)/5 = √(xy)

On squaring both sides then

⇛{ (x+y)/5}^2 = {√(xy)}^2

⇛(x+y)^2/5^2 = xy

⇛(x^2+y^2+2xy)/25 = xy

⇛x^2+y^2+2xy = 25xy

⇛x^2+y^2 = 25xy-2xy

⇛x^2+y^2 = 23xy

⇛( x^2+y^2)/xy = 23

⇛(x^2/xy) +(y^2/xy) = 23

⇛{(x×x)/xy} +{(y×y)/xy} = 23

⇛(x/y)+(y/x) = 23

Therefore, (x/y)+(y/x) = 23

Hence, the value of (x/y)+(y/x) is 23.

Hi, I have a question it is kinda hard but I think i got it, if it's wrong plz tell mee

Solve for X

5-x+6=4

X=3

Answers

5-x + 6 = 4

Combine like terms:

11-x = 4

Subtract 11 from both sides

-x = -7

Divide both sides by -1

X = 7

Answer: x = 7

Question:-

Solve for X

5-x+6=4

Answer:-

x = 7

Explanation:-

=> 5-x + 6 = 4

=> (5+6)-x = 4

=> 11-x = 4

(subtract both the sides by 11)

=> -x = -7

(divide both the sides by -1)

=> x = 7

Anna and Hannah are reading the same book. At the beginning of the month, Anna was on page 29 and Hannah was on page 7. Anna will read 9 pages per day and Hannah will read 11 pages per day. Let

A

A represent the page of the book that Anna is on at the end of

t

t days into the month, and let

H

H represent the page of the book that Hannah is on at the end of

t

t days into the month. Write an equation for each situation, in terms of

t

,

t, and determine whether Anna or Hannah is farther along in the book after 14 days.

Answers

Answer:

Hannah

Step-by-step explanation:

Anna: Page 29 + number of pages read t days into the month

number of pages read t days in the month = 9 t times = 9 * t

Anna: 29 + 9t

Hannah: 7 + 11t using the same logic

14 days in: t = 14

Anna: 29 + 9*14 = 155

Hannah: 7 + 11 * 14 = 161

Hannah is further along

The equations for Anna's progress A = 29 + 9t and Hannah's progress H = 7 + 11t show that after 14 days, Hannah is farther along in the book with page 161 compared to Anna's page 155.

How to Apply Algebraic Equation?

The equation we would write for each situation in terms of t are explained below:

For Anna:

A = 29 + 9t

For Hannah:

H = 7 + 11t

After 14 days:

For Anna: A = 29 + 9 * 14 = 29 + 126 = 155

For Hannah: H = 7 + 11 * 14 = 7 + 154 = 161

After 14 days, Hannah is farther along in the book as she is on page 161 while Anna is on page 155.

Learn more about Algebraic Equation on:

https://brainly.com/question/4344214

#SPJ3

f(x)=x^2-3, find f(-2),f(4),and f(0)
f(-2)=
f(4)=
f(0)=

Answers

Step-by-step explanation:

f(-2)= -2^2-3= -7

f(4)= 4^2-3= 13

f(0)=0^2-3= -3

ali sorced 66 and 72 marks respectively. for his two tests what is the lowest marks he must have sorced for his third test if an average score of at least 75 is required to qualify for a bonus prize

Answers

Answer:

87

Step-by-step explanation:

66 + 72 + 87 = 225

225 / 3 = 75

3-⁵ * 10-⁵ * 125 ÷ 5-⁷ *6-⁵​
who ever answer it I will give them a brainliest

Answers

Answer:

Below

Step-by-step explanation:

3^-5 * 10^-5 * 125 / 5^-7 * 6^-5

= (125 / 5^-7) /  (3^5 *10^5 * 6^5)

= 0.0000516818 to  10 decimal places.

Reflect parallelogram EFGH with E(-4,5), F(3,6), G(2,3) and H(-5,2) in the x-axis. what are the coordinates of F?

Answers

The answer should be (3,-6)

Simply the expression. Write your answer as a power
8^9/8^7
The simplified expression is

Answers

When you have the same base but different exponents, simply subtract the exponents:
8^9/8^7
9-7=2
8^2

Can someone please give me the (Answers) to this? ... please ...

Answers

Answer:

6:A

7;B

8;c

9;A

10:c

11;b

12:A

Answer:

6. Commander David Scott

7. They dropped at the same speed

8. Scale (I think)

9. B

10. True

11. Gravity (not sure)

12. C

17. Weaker

18. Ellipsoid (also not sure)

19. Towards the Earth’s center

20. I don’t know this

21. Center

22. B

Step-by-step explanation:

Not sure about some of them (like 19 because it feels like it can have more than one answer) but yeah the others are self-explanatory

If x is directly propotional to y
Given that x=8 and y=2
find x=4.

Answers

Just do 8/4 = 2/y, should be correct.

Answer:

1

Step-by-step explanation:

Using similarity

8/4 = 2/y

2 = 2/y

2y = 2

y = 2/2

y = 1

During a cold winter day, the temperature change was - 2.3 f per hour for a period of 6.5 hours. What was the change in temperature during that time?

Answers

Answer:

-14.95 F

Step-by-step explanation:

Given:

Temperature change rate is - 2.3 F per hourTime is 6.5 hours

The change in temperature is:

temperature change rate * time -2.3 * 6.5 = -14.95 F

Choose the angle which is represented by the name.

RUN and NUG

Answers

Answer:

Option C

Step-by-step explanation:

Both RUN and NUG have U in the middle of them, so the bottom one would be correct as U is in the center.

Ms. Lee takes out a loan to start a business. She borrows $5,000 at a simple annual interest rate of 6.5% for 5 years. What is the total amount of interest Ms. Lee must pay?

Answers

Answer:

6625

Step-by-step explanation:

We know that:  P = 5000

                          R = 6.5%

                          T = 5

Formulate and substitute: I = 5000rt

Calculate the product or quotient: 5000 x (1 + 0.325)

Calculate the sum or difference: 5000 x 1.325

Calculate the product or quotient: 6625

what is the order from least to greatest with the numbers 5 13/30 5 1/6 5 68/90

Answers

Answer:

Step-by-step explanation:

5 1/6, 5 13/30, 5 68/90

what is 3 3/4 + 2 5/7

Answers

Answer:

6 13/28

Step-by-step explanation:

Hope this helps!

HELP PLEASE!!

1. Olivia sold water bottles over four days. Create a graph to determine if
the quantities of bottles and number of days are proportional If the
quantities are proportional, what is the constant of proportionality?Olivia sold water bottles over four days. Create a graph to determine if
the quantities of bottles and number of days are proportional If the
quantities are proportional, what is the constant of proportionality?

Answers

Answer:

68 got it right on the test!!!

Step-by-step explanation:

Can you help? Please show work. Thank You.

Answers

Answer:

  C.  x+y=5; -2x+y=2

Step-by-step explanation:

The slope of the line in Table A is ...

  m = (y2 -y1)/(x2 -x1)

  m = (-6 -(-4))/(11 -9) = -2/2 = -1

The slope of the line in Table B is ...

  m = (-8 -20)/(-5 -9) = -28/-14 = 2

We observe that the slopes have different signs. This means the signs of the terms in the standard form equation will be different from one equation to the other. The only pair of equations for which that is true is the pair in choice C.

Trying these equations on the first line of the tables, we see they match the table values.

  Table A: 9 +(-4) = 5 . . . true

  Table B: -2(9) +20 = 2 . . . true

_____

Additional comment

Neither equation in choice A has the correct slope for either table. The equations in choice B are inconsistent, both having slope -1, but different y-intercepts.

What is k(-8) when given the function
k(x) = x +5 – 2x2?

Answers

By the way, the typed out question is not proper. Be sure to be clear on signs, like absolute value.

Absolute value of -8+5 is 3. This is because -3 is turned positive due to | |

(-8)^2 = 64
Multiply 64*2, equal to 128

Then solve. — 64-128= -64

-64 is the answer

help ASAP please hmmmm ​

Answers

Answer:

D. The Number 0.55 Is A Rational Number Because It Can Be Written As The Fraction 11/20.

Step-by-step explanation:

Define the domain:  {(2,3),(0,3),(4,2),(5,6)}

A. 2, 0, 4, 5

B. 0

C. 6

D. 3, 2, 6

Answers

For the following relation the domain would be all of the x coordinates.
D=A. 2,0,4,5

Suppose two bicyclists start at the same location.
The first bicyclist rides due north and the other rides
due west. Find the distance in miles that the first
bicyclist rode if they are 3/2 miles apart after riding
for 1 hour at the same speed.

Answers

Answer:

Step-by-step explanation:

See attachment.

If both cyclists travel for the same time and speed, they will have travelled the same distance.  Since one is headed north and the other east, we can see that the distance between them in one hour is the hypotenuse of a right triangle.  Each leg has distance x.  We can say x^2 + x^2 = (3[tex]\sqrt{2}[/tex])^2

2x^2 =1 8

x^2 = 9

x = 3

They both rode 3 miles.

Alexa has set up a lemonade stand outside her house and sells small cups and large cups of lemonade. Each small cup holds 8 ounces of lemonade and each large cup hold 16 ounces of lemonade. Alexa used 320 ounces of lemonade and sold twice as many small cups as large cups. Determine the number of small cups sold and the number of large cups sold.

Answers

Answer:

9485735

Step-by-step explanation:

f (x) = 3x - 2 - g (x) = 2x + 1

Answers

Answer:

Step-by-step explanation:

The answer is easy it’s 24

A water tank is being filled by two inlet pipes. Pipe A can fill the tank in 4 hours, while both pipes
together can fill the tank in 2 hours. How long does it take to fill the tank using only Pipe B?

Answers

2 Hours

this is because one pipe takes 4 hours, and if both pipes take 2 hours, that is cutting the time in half, meaning both pipes pour the same amount and take the same time.

hope this is helpful!

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