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

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.

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

Answers

B I think could be wrong sorry

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

Answers

Answer:

4x+y

Step-by-step explanation:

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

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

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)

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

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.

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

Answers

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

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.

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)

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

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:

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

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)

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

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.

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)

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:

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!

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

Evaluate.
418!
2!7!
plzzzz helpppp

Answers

Answer:

whatttttt6 whattttt whattt

59.7

Step-by-step explanation:

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:

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

Answers

Answer:

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

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:

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

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

Answers

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

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

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