Work out the median age !!

Answer:

I'll assume "S2x+3y=-12" is actually 2x+3y=-12 and that the question is to solve for x and y.

x = -(9/5)

y = -(14/5)

Step-by-step explanation:

2x+3y=-12

4x-4y=4

---

2x+3y=-12

8x+12y=-48  [Multiply the 1st equation by 4]

12x-12y=12   [Multiply the second equation by 3]

20x = -36     [Now we can add the two equations to remoce the y term]

x = -(36/20)  

x = -(9/5)       [The value for x]

====

2x+3y=-12        [Take either equation and s=use x=-(9/5) to find y]

2(-9/5)+3y=-12  

-(18/5) + 3y = -12

+ 3y = -12 + (18/5)

y = -4 + (6/5)

y = -(20/5)+(6/5)

y = -(14/5)          [This is the value of y that will work for both equations]

These equations both have the point (-9/5, -14/5) in common:  they intersect here.

This problem can also be solved by graphing each equation and finding the point they inersect on the graph (attached).

Answer:

Fourth Quadrant

Step-by-step explanation:

a>0 = a is a positive number = +y

b<0 = b is a negative number = -x

[-b,-a] = [-(-x), -(+y)] = [x, -y]

[positive, negative] is on the fourth quadrant

Answer:

Step-by-step explanation:

This question is missing info but if it helps, 2.5 kilometers is 2500m which is 250000 cm

Answer:

Step-by-step explanation:

25 for blue

42 for red

Answer:squere is 42 and triangle id 25

Step-by-step explanation:I now that squere 42 becuse if you add 42 plus 30 equels 72 and i now the triangle is 25 becuse 25 plus 25 equels 50

Answer:

187.775

Step-by-step explanation:

20.3×9.25=

187.775

Answer:

Step-by-step explanation:

Answer:

D. 28.2

Step-by-step explanation:

Answer:

Let's solve by eliminating x. Since 18 is the lowest common multiple , let's multiply the first equation by 3 and the second by -2.

18x−21y=24

−18x+10y=−2

Add the two equations.

−11y=22

Divide by -11 to isolate y.

y=−2

Substitute y=−2 into either of the 2 equations, I'll just use the second one.

9x+10=1

9x=−9

x=−1

Step-by-step explanation: that is your anwser

=========================================================

Explanation:

A cube has 6 identical faces, all of which are squares.

Each square has a side length of 8.5 cm, so its area is (8.5)^2 = 72.25 sq cm.

The overall surface area, aka the area of all 6 faces combined, is 6*72.25 = 433.5 square cm

Answer:

A=433.5cm²

Step-by-step explanation:

A=6a2=6·8.52=433.5cm²

Answer:

Yes

Step-by-step explanation:

because it is going to keep saying LUNCH

Answer:

uh.. shii i dont know

Step-by-step explanation:

Answer:

2/3

Step-by-step explanation:

Answer:

$49,592.50

Step-by-step explanation:

First, to find the total fee of application you times 910 by $1.75 which will give you

910 × 1.75 = 1592.5

Then you add 48,000 with 1,592.5

which will give you an answer of

48,000 + 1,592.5 = $49,592.50

:)

Step-by-step explanation:

the quantity inside the parentheses is being multiplied by itself the number of times the outside exponent

Answer:

1.  Consecutive Interior

2. Corresponding

3. Alternate Exterior

4. 111°

5. 80°

6. 110°

Answer:

-7

Step-by-step explanation:

28=-4v

28/-4=4v/4v

v=-7

Answer:

X = -1 & and for some additional information Y = -5

Step-by-step explanation:

6 x (-1) = (-6)

5 x (-5) = (-25)

(-6) - (-25) = (-31)

_____________

5 x (-1) = (-5)

3 x (-5) = (-15)

(-5) + (-15) = 10

Answer:

  x = -1

Step-by-step explanation:

Rashid may have used elimination to solve the problem, but we can use any method we like to find the correct value of x. One method we like is graphing. The attached graph shows the solution is (x, y) = (-1, 5), so we know Rashid found ...

  x = -1

__

If we go down Rashid's path, we multiply the first equation by 3 and add that to the second equation multiplied by 5. (This choice of multipliers results in a positive coefficient for x.)

  3(6x -5y) +5(5x +3y) = 3(-31) +5(10)

  18x -15y +25x +15y = -93 +50 . . . . . . eliminate parentheses

  43x = -43 . . . . . . . . . . . . . . . . . simplify

  x = -1 . . . . . . . . . . . . . . . . . divide by 43

Answer:

local governments have the most power

Step-by-step explanation:

I hope this is right, but federalism gives more power to the state, so local governments could potentially have more power.

Answer:

i believe it is option one: power and authority are concentrated in the central government and can take away people’s rights

Step-by-step explanation: well i mean its true the governments are corrupted and are slowly taking away our rights

Answer:

9 puppies

Step-by-step explanation:

12*0.75=9

75% remains

Answer:

9

Step-by-step explanation:

Number of puppies before adoption = 12

[tex]Number \ of \ puppies \ adopted = \dfrac{25}{100}*12 = \dfrac{1}{4}*12 = 3[/tex]

Number of puppies that remain = 12 - 3 = 9

Answer:

y=-1/2x+2

Step-by-step explanation:

2 = 0 +b

2=b

y=-1/2x+2

Answer:

y = -1/2x + 2

Step-by-step explanation:

Follow the y = mx + b. B stands for the y-intercept, which is 2 in this case. M stands for the slope, which is the constant -1/2. Pls brainliest i want to level up ty!!!!!

Answer:

5. p (6) = -6

6. f (-9) = -3

7. g (-4) = 15

8. h (5) = 19

9. u answered already

10. p (-9) = 9

11. f (-11) = -5

12. g (1) = 0

13. h(-4) = -8

14. k (10) = 181

15. p (11) = 11

16. f(-8) = -2

17. g (-10) = 99

18. h (3) = 13

19. k (6) = 49

20. p (99) = -99

21. f(0) = 6

22. g (2) = 3

23. h(0) = 4

24. k(3) = 7

25. p(-1/2) = 1/2

26. f (0.4) = 6.4

27. g (1/2) = -3/4

28. h (-1.2) = 0.4

29. k (1/2) = -1/2

30. p ([tex]\sqrt{6}[/tex]) = -[tex]\sqrt{6}[/tex]

Hope this helps! If it does, please mark me Brainliest. Remember to report any answer that copies mine. Thanks!

Answer:

2.4 miles

Step-by-step explanation:

She walks 0.8 miles per hour

Hope this helped!

Answer:

14

Step-by-step explanation:

111+55

=166

180-166

=14

Answer:

Step-by-step explanation:

m∠ 1 = 104°

m∠ 2 = 79°

m∠ 3 = 65°

m∠ 4 = 45°

m∠ 5 = 73°

m∠ 6 = 147°

Answer:

7 < x < 8

Step-by-step explanation:

[tex]12<4x-16<16\\\\12+16<4x-16+16<16+16\\\\28<4x<32\\\\\frac{28}{4}<\frac{4x}{4}<\frac{32}{4}\\\\7<x<8[/tex]

Answer:

(x,-y): (2,-2)

Step-by-step explanation:

M=(x+x)/2,(y+y)/2

Given (1,4)=

[tex] \frac{3x - 4}{2} [/tex]

This implies:

[tex]1 = \frac{3x - 4}{2} [/tex]

[tex]3x - 4 = 2 \\ 3x = 2 + 4 \\ \frac{3x }{3} = \frac{6}{3} \\ x = 2[/tex]

In a similar way,

[tex]4 = \frac{ - 2 + 5y}{2} \\ - 2 + 5y = 8 \\ 5y = 10 \\ y = 2[/tex]

The question demanded (x,-y)

Hence(2,-2) is the answer

Answer:

merry Christmas to you advance

Answer: 3520

please give brainliest

Step-by-step explanation:

Answer:

3,520 miles in a Yard.

Step-by-step explanation: