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SSSSS [86.1K]
3 years ago
7

10x + 9y - 10z = -7 72 - 9y + 72 = 0 7x – 3y + 2z = 2

Mathematics
1 answer:
k0ka [10]3 years ago
5 0

Answer:

-10x + 6y + 2z = -30 10x + 2y + 8z = 18 8y + 10z = -12 4y + 5z = -6 -15x + 9y + 3z = -45 15x + 5y + 7z = 9 14y + 10z = -36 7y + 5z = -18 7y + 5z = -18 -4y - 5z = 6  8x-9y=72. 8x−9y=72 8 x - 9 y = 72. 3y - 3y x?+6x=2x-4 x²+4X=-4 x2+4x +4= 0. (x+2)(x+2) =0. X=-2 x=-2 ... 6-3x = 4x + 4. . 2=7x -. - 4-2=34+12. - ý 2=2y+12. +. 3X= 12-X.

Step-by-step explanation:

i suck at math XD

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How many 1/2cups are in 7/8cups
frozen [14]

Answer:

Step-by-step explanation:

7/8) / (1/2) .when dividing fractions, flip what u r dividing by, then multiply

7/8 * 2 = 14/8 = 1 3/4 <==

4 0
3 years ago
Solve for W: P=2L + 2W<br><br>A. W=P-L<br>B. W= 1/2P - L<br>C. W= 1/2 P + L<br>D. W= 2P - L​
svetlana [45]

Answer:

B

Step-by-step explanation:

P=2L+2W

P-2L=2W (Subtract 2L from both sides of the equation)

2W=P-2L (Symmetric Property of Equality)

W=\frac{P-2L}{2} (Divide both sides of the equation by 2)

W=\frac{P}{2} -\frac{2L}{2} ("Split" the fractions)

W=\frac{1}{2}P-L (Simplify)

Hope this helps!

4 0
3 years ago
60 = −2(−10 − 4x)<br> what is the answer show step by step
Papessa [141]
That’s the answer with steps

8 0
3 years ago
Read 2 more answers
Each of the six letters stands for a different number, 1 through 9. Using the three clues, can you deduce the number represented
-BARSIC- [3]

Answer:

A = 9

B = 2

C = 5

D = 1

E = 8

F = 7

Step-by-step explanation:

A 9 B 2 C 5 = 16

D 1  E 8 F 7 = 16

10   10    12

BxC (2x5) = 10

A+D (9+1) = 10

4 0
3 years ago
Draw a rectangle with an area of 42 square units
Butoxors [25]
We know, Area = Length * Width

So, with area 42, dimensions could be: 1 * 42
2 * 21
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Just draw the lines with that measures, two pair of two equal opposite lines.

Hope this helps!

6 0
3 years ago
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