Mathematics High School

In systems by substitution what is y=x+8 and x+y=2

Answers

Answer 1

Answer:

x = -3

Step-by-step explanation:

y = x + 8 and x + y = 2

Using substitution, we know that y = x + 8, so:

x + y = 2

x + (x + 8) = 2

2x + 8 = 2

2x = -6

x = -3

Then we solve for y:

x + y = 2

-3 + y = 2

y = 2 + 3

y = 5

Related Questions

ay you should help me with this tyty

Answers

Answer:

C. [tex]m=20[/tex], [tex]n=10[/tex]

Step-by-step explanation:

Since the triangle is a special 30°-60°-90° triangle, the hypotenuse is twice the size of the shortest leg. The long leg is [tex]\sqrt{3}[/tex] of the short leg.

Help me plssssssssssssssssssssa

Answers

Answer:

i believe the answer is A.

Step-by-step explanation: Because the angle PQS is not a 90 degree angle it should equal 180 degrees, it is now lowered down to the answers A. and B. Answer B. has 2x and answer A. has just x. if it were to be 2x then the x would  have to represent 30 degrees but the point plotted x does not equal 30 degrees therefore leaving the last answer as A. x-60=180

One of the legs of a right triangle measures 7 cm and the other leg measures 17 cm.
Find the measure of the hypotenuse. If necessary, round to the nearest tenth.

Answers

Answer:

18.4

Step-by-step explanation:

By using the pythagorean theorem (a^2 + b^2 = c^2)

A train is traveling at 30 miles per hour.

How long will it take the train to travel 180 miles?
FREE BRAINLIEST!!!

Answers

Answer:

Six hours

Step-by-step explanation:

Answer:

6 Hours

Step-by-step explanation:

If the train travels at 30mph for 6 hours it will have traveled 180 miles.

30 • 6 = 180

I hope this helps

Consider the sequence shown.

436, 218, 109, 54.5, 27.25,...



Select the correct explicit formula for the sequence.

a
g_n=436·0.5^{(n-1)}

b
g_n=0.5·436^{(n-1)}

c
g_n=436·2^{(n-1)}

d
g_n=2·436^{(n-1)}

Answers

Answer:

[tex](a) \to \: g_n=436·0.5^{(n-1)}[/tex]

i think the answer is

A.gn =436 . 0.5 (n-1)

The mode and median of the data set below have the same value. What is the missing number?


[4, 15, 7, 13, ?, 10

please someone help!​

Answers

10 ! (To find the median add the two middle numbers 7,13 = 20 divide 20 by two and you get 10 as your median. Mode means the most common number which means the mode is also 10)

Evaluate.
418!
2!7!
plzzzz helpppp

Answers

Answer:

whatttttt6 whattttt whattt

59.7

Step-by-step explanation:

2x+5y=-11.
-8x-5y=-11

Answers

8x+5y-11=0 (That’s -8x5y=-1 simplified

An Atlanta football player averages 67 attempts for 518 yards. The team needs 39 yards to win the bowl game, Calculate how many attempts will be needed if the footbo player keeps the ball moving at the same rate.​

Answers

518/67 = approximately 7.7313 yards per attempt

39/7.7313 = 5.0444 attempts

PLEASEEEEEEEE HELPPPPPPPPP I WILL GIVE BRAINLIEST

Answers

These triangles are not similar.  The triangles are not similar because the proportion 8/9 = 2/3 is false.

PLZ HELP, 3 * 2/15 exsplain how you got it too. i just need an exsplaination. step by step.

Answers

Answer:

2/5

Step-by-step explanation:

you will first put a one for the denomenator for 3 to make it a fraction, then oyu multiply across, lastly simplfy by 3

Answer:

8/15

Step-by-step explanation:

4x2=8

5x3=15

b + 4.8 = 8.09
b + 4.8 x = 8.09x
b =

Answers

4.8 x = 0.89 . that will be the answer
B=3.29
X=1
Hope it helps<3!

Which expression is equivalent to (7x + 6) - (4x + 2)?

Answers

Answer:

=(3x+4)

Step-by-step explanation:

Answer:

What r the options, I’ll help when u show the options

Step-by-step explanation:

calculate x. (geometry)
im in need of help, its due in like 14 minutes

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Isosceles triangles.

Since, the sides are equal, we can equate them, so we get as,

==> 16x + 13 = 24x -19

=> 24x -16x = 13+19

=> 8x = 32

x = 4

hence ==> x = 4.

8x-5 = 9+7x What is the solution please show work if you can

Answers

Step-by-step explanation:

8x-5=9+7x

8x-7x=9+5

x=14

Answer:

8x-5 = 9+7x

8x-7x =9+5

x = 14

How do you find the experimental probability?

Answers

Conduct an experiment and record the number of times the event occurs and the # of times the activity is performed then divide the two numbers to obtain the Experimental Probability.

Please help due in 10 minutes!!!!!!!

Answers

Answer:

23.42 ft is the perimeter of the hole that should be cut in the wall.

ayudaaa plis
7-4=
6-2=
-3-2=
-8+9=
-9+5=
1+10=​

Answers

Answer:

7-4=3

6-2=4

-3-2= -5

-8+9=1

-9+5= -4

1+10=11

Step-by-step explanation:

No es tan difícil, puedes g0oglearlo

Answer: 3, 4, -5, 1, -4, 11

Step-by-step explanation:

Write an equation (division) with fractions that equals 6/8
:)

Answers

Answer:

3/4 ÷ 1/2

RECHECK:

3/4 ÷ 1/2  

3 / 8 x 2 / 1  = 6/8

hOPE ITS RIGHT!

Answer:

Step-by-step explanation:

HCF of 6 and 8 is 2

6÷2 / 8÷2 = 3/4

the slope is -3/2, the y intercept is 1. Write an equation for the linear function, f(x)

Answers

Answer:

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

Step-by-step explanation:

y=mx+b

m=slope

b=y intercept

y=f(x)

Answer soon! I’ll grant you brainliest! Line L Is perpendicular to line M. Find the Value of X. Picture down below.

Answers

Answer:

im sorry i dont understand but u can probably aks my friend

Step-by-step explanation:

so all i can do is give u her ig if u need it let me know ok bye hope u can answer it

What is the distance between points A and E on the coordinate plane below? a : (4,3) e : (-5,3)​

Answers

Input Data :
Point 1
(
x
A
,
y
A
)
= (4, 3)
Point 2
(
x
B
,
y
B
)
= (3, -2)

Objective :
Find the distance between two given points on a line?

Formula :
Distance between two points =
√
(
x
B
−
x
A
)
2
+
(
y
B
−
y
A
)
2


Solution :
Distance between two points =
√
(
3
−
4
)
2
+
(
−
2
−
3
)
2

=
√
(
−
1
)
2
+
(
−
5
)
2

=
√
1
+
25

=
√
26
= 5.099
Distance between points (4, 3) and (3, -2) is 5.099

The area of a circle is 64 pi inches ^2
What is the circumference in inches expense your answer in terms of pie

Answers

Answer:

R=8cm

Step-by-step explanation:

solve for x please thanks

Answers

Answer:

x=[tex]\frac{10}{14}[/tex]

Step-by-step explanation:

y=7x-2

2(7x-2)-4x=10

14x-4-4x=10

14x-4x=10-4

10x=14

x=[tex]\frac{10}{14}[/tex]

The person that just answered is wrong the answer is x=7/5

3x+x+y PLEASE HELP ME ITS DUE TODAY

Answers

Answer:

4x+y

Step-by-step explanation:

Will give, Branliest.​

Answers

m=2

y=7

m=10

a=28

t=65

h=8

Answer:

m=2

y=7

m=10

a=28

t=65

h=8

Step-by-step explanation:

Which of these graphs is the solution set for the equation y = -x?

Answers

B I think could be wrong sorry

What is the mode, mean, median for these numbers?
{18,18,63,63,84}

Answers

Answer:

Mean= the average of the number set= 18+18+63+63+84=246/5=49.2

Median- the number in the middle of the set= 63

Mode- the number(s) that repeat=1 8, 63

Range- the amount between the highest and lowest numbers= 84-18=66

Step-by-step explanation:

The mode, mean, and median of the data will be 18 or 63, 49.2, and 63, respectively.

What are statistics?

Statistics is the study of collection, analysis, interpretation, and presentation of data or discipline to collect and summarise the data.

The data set is given below.

18, 18, 63, 63, 84

The mode of the data is given as,

Mode = Frequency of the repeated number

Mode = 18 and 63

The mean of the data is given as,

Mean = (Sum of observations) / (Number of observations)

Mean = (18 + 18 + 63 + 63 + 84) / 5

Mean = 246 / 5

Mean = 49.2

The median of the data is given as,

Median = (n + 1)th / 2

Median = (5 + 1)th / 2

Median = 6th / 2

Median = 3th

Median = 63

The mode, mean, and median of the data will be 18 or 63, 49.2, and 63, respectively.

More about the statistics link is given below.

https://brainly.com/question/10951564

#SPJ2

how to solve b 2 + 5b -35 = 3b

Answers

here you go!..........

Match the following expression 12(x-3)+18=4(2x-3) with the number of solutions below.
A.One solution?
B.No solution ?
Or
C.All solution?

Answers

12(x-3) + 18 = 4(2x-3)

12x-36+18 = 8x-12

12x -18 = 8x-12

12x-8x = -12 + 18

4x = 6

x = 6/4 or 3/2

one solution A

Answer:

3/2, one solution.

Step-by-step explanation:

12(x-3)+18=4(2x-3)

12x-36+18=8x-12

12x-8x-18=-12

4x-18=-12

4x=-12+18

4x=6

x=6/4

simplify

x=3/2

Other Questions
True or False. The cross section of a Sphere is an ellipse.a. True b. False What is your opinion about minor children (under the age of 18) donating one of their kidneys for their brother or sister? Write at least three sentences stating your opinion and backing your answer. (7x100)+(4x1/100)+(8x1/1000) What is the code for the procedure of Collection of capillary blood from heel? A stack of 700 pieces of paper is 10.5 inches tall. How thick is one single piece of paper? 1. Cuando mis amigos(as) y yo vamos de compras...2. Cuando vemos una pelcula muy divertida...3. Cuando tengo un examen de ingls...4. Cuando mi amigo(a) saca una mala nota...5. Cuando no recibes una carta de tu buen amigo...6. Cuando mis amigos(as) no tienen clases...7. Cuando oigo msica alegre...8. Cuando es tu cumpleaos...9. Cuando tengo mi clase favorita...10. Cuando haces mucho ejercicio... is C2Br2 ionic or covalent 1. Last month, John's dog ate 45 cans of dog food in30 days. How many cans should John buy to feed hisdog for the next 6 days?Please help me !!! best anwser gets brain thank you show work Solve the quadratic equation numerically (using tables of x- and y- values).x squared + 2 x + 1 = 0 Choose all of the items that represent a common description of John D. Rockefeller and Andrew Carnegie.A)steel industryB)bought their way into elected office.C)sometimes classified as "Robber BaronsD)gave away huge portions of their wealth to charityE)oversaw the creation of trusts/monopolies in the late 1800s Please answer this its DUE RIGHT NOW!!!!!Lots of points just right out the answers please!!!! 57/4 1/6 = 57/24 = The bargaining leverage of suppliers is greater when: A. only a small number of suppliers exist and when it is difficult for industry members to switch to attractive substitutes. B. industry members incur low costs in switching their purchases from one supplier to another. C. industry members purchase in large quantities and thus are important customers of the suppliers. D. it makes good economic sense for industry members to vertically integrate backward. E. the supplier industry is composed of a large number of relatively small suppliers. Write a diary/ a blog entry about a birthday party that you organized for your brother recently.In your blog entry/ diary you should explain :Describe how you felt when you realized that you had to organize the party yourself.Describe what you did for the party.Say whether you thought the party was a success. Lin's family has complete 70% of a trip. They have traveled 35 miles how far is the trip Some delegates to the Second Continental Congress wanted to make peace with the British. Why mightthey have wanted to do this? What is a building?? How are they made??? PLEASE HELP ME I NEED HELPPPPPP!!!!!!!!!!Every 4 days, William has to take medication for his back. Every 6 days, he has to take medication for his asthma. On what day will William take both medications? fill in the blanks: given 4a -3b =22.a) if a=4,b=___b) if b=6,a=___c) if a=0,b=___d) If b=0, a=___e) If a=b, a=___