Ellason wants to solve the following system using the elimination method: 5x + 2y = 30 x + y = 8 What number should the equation
x + y = 8 be multiplied by to eliminate y?
2, −2, 5, −5
2 answers:
- 2 because we obtain : - 2x - 2y = - 16 ;
We solve the system:
5x + 2y = 30
-2x - 2y = -16
_____________(+)
3x / = 14;
x = 14/3;
y = 8 - 14/3;
y = 24/3 -14/3;
y = 10/3;
The solution of the system is ( 14/3 ; 10/3 )
-2.
5x + 2y = 30
-2x- 2y = 16
3x = 14
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Answer:
31/4
Step-by-step explanation:
A^2 + 2^2 = 10^2
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A^2 = 96
A = square root of 96 - about 9.8 m
Answer:
A: y=6x+4
i hope this helps
You will have to use the SAS postulate :))
