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AURORKA [14]
4 years ago
7

8x+4y=16 ; 7y=15-x solve the system of equations given below

Mathematics
2 answers:
Nimfa-mama [501]4 years ago
6 0
The answer is x=1 and y=2 hope it helps you dear
soldier1979 [14.2K]4 years ago
6 0

Answer:  (1,2)

Step-by-step explanation:

The given system of linear equations :-

8x+4y=16 \\7y=15-x which can be written as ,

2x+y=4..........(1) \text{[Divide both sides by 2]}\\7y+x=15................(2)\text{[Add x on both sides]}

Now, Multiply 2 on both sides of equation (2), we get

14y+2x=30.........(3)

Subtract equation (1) from equation (3) , we get

13y=26\\\\\Rightarrow\ y=2

Put y= 2 in (1), we get

2x+2=4\\\\\Rightarrow\ 2x=2\\\\\Rightarrow\ x=1

Hence, the solution to the given system is (1,2).

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slavikrds [6]

Answer:

The answer is

\frac{2s}{n}  - l = a

Step-by-step explanation:

s =  \frac{n}{2} (a + l)

multiply both sides by 2 to get

2s = n(a + l)

divide both sides by n to get

\frac{2s}{n}  = a + l

subtract L from both sides to get the answer

\frac{2s}{n}  - l = a

6 0
3 years ago
What is the slope of (5, -3) and (8, -5) tell me how you got your answer
Viktor [21]
To find the slope, you find the change in y-values over the change in x-values. 

Your first point is: (5,-3)
Your second point is (8, -5)
Your x-values are: 5 and 8
Your y-values are -3 and -5
The equation to find slope is: slope = (y2-y1)/(x2-x1)
       - The 2s and 1s indicate which point the values belong to, it makes sure               that you align the right x-value with its correct y-value. It doesn't matter               which point you assign as 1 or 2, as long as the values match
             - So, x-value 5 will match with y-value -3, and x-value 8 will match with                  y-value -5

Now you plug in out values :
slope = (y2-y1)/(x2-x1)
slope = (-5-(-3))/(8-5)
slope = (-2)/(3)
slope = -2/3


6 0
4 years ago
Read 2 more answers
What are the period and phase shift for f(x) = −4 tan(x − π)?
liq [111]

Answer:

2

Step-by-step explanation:

Period of tan is π radians

f(x - π) is a horizontal shift of π towards the right

8 0
3 years ago
The _____ property states that a quantity may be substituted for its equal in any expression
____ [38]
Substitution property
7 0
3 years ago
Read 2 more answers
I wi mark you brainless and give point of this gets completed
Paraphin [41]

Answer:

1. (x + 5)(x +10)

2. (x - 7)( x - 8)

3. (x - 4)( x - 7)

4. 2(7x−1)(x−9)

5. (2x+9)(x+6)

6. (x−1)(x−2)

7. (2x+3)(x+8)

8. (9x−2)(x−7)

9. 6(x−6)(x+7)

10. (9x+10)(x−4)

11. (3x+7)(x+3)

12. (x−9)(x−9)

13. 4(9x−10)(x−8)

14. 3(x+3)(x−9)

15. 2(x−1)(x+3)

16. 2(3x−1)(x+2)

17. 5(x−2)(x−2)

18. 2(x−1)(x−2)

Step-by-step explanation:

I'm so sorry it took this long that made my brain hurt it was worth it

Sorry it took so long..

hope I helped!!

5 0
3 years ago
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