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olya-2409 [2.1K]
2 years ago
9

5x - 4y = -8 x + 4y = -16

Mathematics
1 answer:
kati45 [8]2 years ago
7 0

Answer:

(-4 , -3)

Step-by-step explanation:

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Simplify 12(6)-7(2)+(6-3)
Ber [7]

Step-by-step explanation:

12(6) - 7(2) + (6-3)

48 - 14 + 2

36

5 0
3 years ago
Read 2 more answers
Can someone please help with #16
ollegr [7]

Answer:

∠ WZX = 50°

XW is not an altitude.

Step-by-step explanation:

16. See the attached figure.

XW is the angle bisector of ∠ YXZ, hence, ∠ WXY = ∠ WXZ

Now, given that ∠ YXZ = 8x + 34 and ∠ WXY = 10x - 13

Hence, ∠ YXZ = 2 ∠ WXY

⇒ 8x + 34 = 2(10x - 13)

⇒ 8x + 34 = 20x - 26

⇒ 12x = 60

⇒ x = 5.

Hence, ∠ XZY = ∠ WZX = 10x = 50° (Answer)

Now, ∠ WXZ = ∠ WXY = 10x - 13 = 37°

Hence, from Δ WXZ,

∠ WZX + ∠ WXZ + ∠ XWZ = 180°

⇒ 50° + 37° + ∠ XWZ = 180°

⇒ ∠ XWZ = 93° ≠ 90°

Hence, XW is not an altitude. (Answer)

6 0
3 years ago
Solve the given equation. ( 1/5 )( 4/7 )x = 32/490 (x is and exponent) x= _____
Vikki [24]
X= 4/7 because it would be

4/35x=16/245

which would be 28x=16

simplified it would be 4/7
5 0
3 years ago
30 points + brainliest answer.<br> Answer D got cut off, it is 5/18.
Basile [38]

C. 5/6

30 people with soda + 45 people with lemonade = 75/90 people

simplifies to 5/6.


3 0
3 years ago
Carla is going to draw a marble from the bag shown below, replace it, and then draw another marble. What is the probability that
Contact [7]

Answer:

7/80

Step-by-step explanation:

(3 green, 4 yellow, 5 blue, 8 pink) = 20 marbles

P ( green or yellow  ) = number of green or yellow / total

                = (3+4)/20  = 7/20

Replace  

so we have (3 green, 4 yellow, 5 blue, 8 pink) = 20 marbles

P (blue) = number of blue/ total

                = 5/20  = 1/4

P ( green or yellow, replace, blue) = 7/20 * 1/4 = 7/80          

8 0
3 years ago
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