5x + y = 11
3x - y =9
What is the value of x and y

Answer:

140°

Step-by-step explanation:

Three angle are labeled below the acre. The smallest angle is 3/8 as large as the 160 angle. Find the value of angle a

The value of the smallest angle is given as:

= 3/8 of the 160 angle

=3/8 × 160°

= 60°

The sum of the total angle = 360°

Hence:

360° = 60° + 160° + a

a = 360° - (60° + 160°)

a = 360° - 220°

a = 140°

Therefore, a = 140°

Answer:

(5, 1 )

Step-by-step explanation:

Given the 2 equations

3y - 2x = - 7 → (1)

5x + 3y = 28 → (2)

Rearrange (1) expressing 3y in terms of x by adding 2x to both sides

3y = - 7 + 2x

Substitute 3y = - 7 + 2x into (2)

5x - 7 + 2x = 28

7x - 7 = 28 ( add 7 to both sides )

7x = 35 ( divide both sides by 7 )

x = 5

Substitute x = 5 into either of the 2 equations and solve for y

Substituting into (2)

5(5) + 3y = 28

25 + 3y = 28 ( subtract 25 from both sides )

3y = 3 ( divide both sides by 3 )

y = 1

solution is (5, 1 )

Answer:

-(3y-2x= -7)

3y+5x= 28

-3y+2x= 7

3y+5x= 28

7x=35

7x/7= 35/7

x=5

5(5)+3y= 28

25+3y=28

3y= 28-25

3y=3

3y/3=3/3

y= 1

3y-2x= -7

3(1) -2x= -7

3-2x= -7

-2x= -7-3

-2x= -10

-2x/-2=-10/-2

x= 5

chekin

5x+3y=28

5(5)+3(1)=28

25+3=28

28=28

Answer:

each bag weights 1,500 grams

Step-by-step explanation:

there are 1000 grams in a kilogram

6 times 1000 is 6000

6000 divided by 4 is 1500

Answer:

1.5 i think

Step-by-step explanation:

6/4

Answer:

answer is 0

..................3rd option

Answer:

x=1,y=-1

x3+y3=(1)3+(-1)3=1-1=0

so, answer is (c) 0

Answer:

A

Step-by-step explanation:

y component=17 sin 81≈16.7907≈16.8

Answer:

76

Step-by-step explanation:

khan x math

Responder:

Tn = 4n + 1

Explicación paso a paso:

Dada la secuencia aritmética

5,9,13,17,21 ...

Debemos encontrar el enésimo término de la secuencia

Tn = una + (n-1) d

a es el primer término = 5

n es el número de términos

d es la diferencia común

d = 9-5 = 13-9

d = 4

Sustituir en la ecuación

Tn = 5+ (n-1) (4)

Tn = 5 + 4n-4

Tn = 4n + 5-4

Tn = 4n + 1

Por tanto, el enésimo término de la secuencia se expresa como Tn = 4n + 1

Answer:

3 and 7

Step-by-step explanation:

because 7 + 3= 10 and 7 x 3= 21

most likey your answers are x=3 and y=7 OR x=7 and y=3

Answer:

Step-by-step explanation:

Use the ordered pairs to determine the correct function

Point (0, 3)

Point (1, 8)

x = 1, y = 8 - option A.

It leaves us with option D

Check other two pairs as well:

This confirms option D is correct

Answer:

A= 81πm² or 254.47 m²

Step-by-step explanation:

Area = π x r²

π x 9m² (9x9)

i'm not 100% sure this is correct so i'm sorry if it is wrong

Answer:

270 seconds

Step-by-step explanation:

Melissa's time = x seconds

Abby's time = (x + 30) seconds

Abby walks at a speed of 8 feet per second, and Melissa walks at a speed of 9 feet per seconds.

But, speed = [tex]\frac{distance}{time taken}[/tex]

For Abby,

8 = [tex]\frac{distance}{(x + 30)}[/tex]

distance = 8(x + 30) ................. 1

for Melissa,

9 = [tex]\frac{distance}{x}[/tex]

distance = 9x ............. 2

From equations 1 and 2, for the same distance;

8(x + 30) = 9x

8x + 240 = 9x

x = 240 seconds

Abby's time = (x + 30)

                    = (240 + 30)

                    = 270 seconds

So that Abby has been walking for 270 seconds when both students had walked exactly the same distance.

The time taken is 270 seconds.

Given that,

Based on the above information, the calculation is as follows:

8(x + 30) = 9x

8x + 240 = 9x

x = 240

So Abby time should be

= 240 +  30

= 270

Learn more: brainly.com/question/17429689

Answer:

3,600

Step-by-step explanation:

(22 - 2) x 180

20 x 180

3,600

Answer:

(b) 217 cm

Step-by-step explanation:

The computation of the number of centimeters will each have is shown below:

= Length of the string ÷ number of pieces

= 10.85 meters ÷ 5

= 2.17 meters

= 217 centimeters

hence, the correct option is b.

Answer:

Step-by-step explanation:

(x+9)² + (y-6)² = 9²

9514 1404 393

Answer:

  8) ΔCAB ~ ΔFDE; SSS

  9) ΔMNQ ~ ΔPNO; SAS

  10) ΔDBE ~ ΔABC; SAS

Step-by-step explanation:

8) The side ratios, shortest to longest, are ...

  6 : 8 : 10 = 9 : 12 : 15 = 3 : 4 : 5

so are the same for both triangles. Triangles CAB and FDE are similar by SSS.

__

9) MN/NQ = PN/NO = 6/5 = 12/10. The vertical angles between these corresponding sides are congruent. Triangles MNQ and PNO are similar by SAS.

__

10)  BD/BA = BE/BC = 21/28 = 24/32 = 3/4. The shared angle between the corresponding sides is congruent to itself. Triangles DBE and ABC are similar by SAS.

Answer:

x= -3

Step-by-step explanation:

Answer:

x = -3 hope this help  

Answer:

64 units2

Step-by-step explanation:

16 x 8 / 2 =

128 / 2 =

64

Hope that helps!

Answer:

b = 24

explanation:

you use the Pythagorean theorem.

a^2 + b^2 =c^2

so we do 32^2 + x^2 = 40^2 then solve

32 squared is 1024 and 40 square is 1600 so you minus the 2 and get 576 then you square root 576 and you finally answer is 24

From corresponding angles theorem, we can see the 2 angles are equal.

16x+13=18x-1

2x=14

x=7

Done!

Any questions just leave them in the comments and I will answer.

Answer:

Step-by-step explanation:

i think you do 34x + 12

bc it is a same side interior angle and i think that equals 180 and then you

34x+12=180

      -12  - 12

34x=       168

------          ------

34              34

----------------------

i.dk i think it is 5 bc you get 4.98 so you round the 8 and it makes it a 4.10 which is 5

Answer:

C

Step-by-step explanation:

Answer:

Number 1: -8.7. Number 2: -2

Step-by-step explanation:

To find the first one, subtract 11 from 2.3.

2.3-11= -8.7 , so that's the answer for the first one.

To find the answer to the second one, just do -4+-2=-2, so that's the answer for the second one.

Answer:

a is the answer

Step-by-step explanation: i k n o w

Answer:

Step-by-step explanation:

Second box

Answer:

it is actually the first box

Step-by-step explanation:

Answer:

f(x) = 32

by substituting the 2 in place of x

Answer:

The number 4129 is in the sequence calculate the number which comes immediately before 4129 in the sequence

Step-by-step explanation:

please tell me on this question

Answer:

46 unit^2

Step-by-step explanation:

Total surface area=2.5*4*2+2*2.5*2+2*4*2=46

Answer:

2.2 MB the side of the nigh