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sertanlavr [38]
2 years ago
14

PLEASE HELP VERY EASY!! EXPLINATION NEEDED!!!!! :' )

Mathematics
2 answers:
Leviafan [203]2 years ago
8 0
D cause it’s 8x2 then 5x2 which is 16+10 which 26 and it’s 40 cause 8x5 is 40
Alja [10]2 years ago
3 0

D cause it’s 8x2 then 5x2 which is 16+10 which 26 and it’s 40 cause 8x5 is 40

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Two liters of water are poured into an empty vase shaped like an octagonal prism. The base area is 100 square centimeters. What
Molodets [167]

Answer: Height of the water is 20 cm.

Step-by-step explanation:

Since we have given that

Base area = 100 square cm

volume of vase shaped  like an octogonal prism = 2 liters

We need to find the height of water.

and 1 liter = 1000 cm³

2 liters = 2×1000 cm³

As we know the formula for "Volume":

Volume=\text{Base Area}\times height\\\\2\times 1000=100\times height\\\\height=\dfrac{2000}{100}\\\\height=20\ cm

Hence, height of the water is 20 cm.

4 0
3 years ago
6x-y=-23 8x+3y=-9 Substition method (Show it step by step please!)
Tanya [424]

Answer:

solution is (- 3, 5 )

Step-by-step explanation:

given the 2 equations

6x - y = - 23 → (1)

8x + 3y = - 9 → (2)

rearrange (1) expressing y in terms of x

y = 6x + 23 → (3)

Substitute y = 6x + 23 into (2)

8x + 3(6x + 23 ) = - 9

8x + 18x + 69 = - 9

26x + 69 = - 9 ( subtract 69 from both sides )

26x = - 78 ( divide both sides by 26 )

x = - 3

substitute x = - 3 into (3)

y = (6 × - 3 ) + 23 = - 18 + 23 = 5

solution is (- 3, 5 )


5 0
3 years ago
HELP PLEASE!!<br> what is the solution of the system ? y=-8x-2 and y=-6x+4
Illusion [34]

Answer: -3

Since the both equal the same value we can combine the into -8x-2=-6x+4.

From there you can solve from whatever side you want, and the answer is -3.

5 0
2 years ago
John playing with his friends a game where you need to get 20 points to win. In the start of the game John lose 10 points and th
zloy xaker [14]

Answer:

2

Step-by-step explanation:

0 - 10 = -10

-10 + 12 = 2

John has 2 points

3 0
3 years ago
Which statement about the net is true?
Ivanshal [37]

Answer:

A

Step-by-step explanation:

The net can be folded to form a pyramid

4 0
2 years ago
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