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tatyana61 [14]
3 years ago
12

Y - 5z = 15

Mathematics
1 answer:
olga_2 [115]3 years ago
5 0

Answer:

In the picture.

Step-by-step explanation:

In the picture.

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Solve for x in both!!!!!
zvonat [6]

Answer:

- 2(x - 2) - 4x = 3(x + 1) - 9x \\  - 2x + 4 - 4x = 3x + 3 - 9x \\ 9x - 3x - 2x - 4x = 3 - 4 \\ 9x - 9x =  - 1 \\ 0x =  - 1 \\ 0 =  - 1

So ; No solution

___o___o____

5(x + 2) - 3 = 3x - 8x + 7 \\ 5x + 10 - 3 =  - 5x + 7 \\ 5x + 7 =  - 5x + 7 \\ 5x + 5x = 7 - 7 \\ 10x = 0 \\  \\ x =  \frac{0}{10}  \\  \\ x = 0

I hope I helped you^_^

4 0
3 years ago
Read 2 more answers
A parking lot has spaces reserved for motocyles, cars and vans. There are five more spaces reserved for vans than motorcycles. T
77julia77 [94]

Answer:

  • motorcycles: 20
  • vans: 25
  • cars: 135

Step-by-step explanation:

There are 3 car spaces for each non-car space, so the number of car spaces is 3/4 of the total: (3/4)×180 = 135.

The number of motorcycle spaces is half of 5 less than the remainder, so is ...

  (180 -135-5)/2 = 20

and van spaces are 5 more than that: 25.

There are 20 motorcycle spaces, 25 van spaces, and 135 car spaces.

7 0
4 years ago
Where are negative numbers placed on a number line
ahrayia [7]

Answer: Negative numbers are placed to the left of zero on the number line

6 0
3 years ago
Read 2 more answers
Given vectors A (2,-1,5), B (4,3,-2) & C (5,4,0), find:?
MrRissso [65]
A) 4a - 3b + 2c

4(2, -1, 5) - 3(4, 3 , -2) + 2(5, 4, 0) = (8, -4, 20) - (12, 9, - 6) + (10, 8, 0) =

= (8 - 12 + 10 , -4 - 9 + 8 , 20 + 6 + 0) = (6, - 5, 26)

Answer: (6, - 5, 26)

b) magnitude of vector b

\sqrt{4^2+3^2+(-2)^2} = \sqrt{16+9+4} = \sqrt{29} ~ 5.4

c) vector of length 7 parallel to vector c

=> m(5,4,0) = (5m,4m,0)

=>    \sqrt{(5m)^2+(4m)^2+0}= \sqrt{25m^2+16m^2}= \sqrt{41m^2}=m \sqrt{41}=7

=> m = 7 / √41 ≈ 1.093

=> 1.093 (5, 4, 0) = (5.465 , 4.372, 0)

Answer: (5.465 , 4.372 , 0)
7 0
3 years ago
an electrician charges a fee of $50 plus $35 per hour. let y be the cost in dollars of using the electrician for x hours. write
Alex Ar [27]

Answer:

y = 50 + 35x we dont know how many hours they worked

Step-by-step explanation:

7 0
3 years ago
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