Step-by-step explanation:
2x - y = 11 -----(1)
x + 3y = -5 ------(2)
By
eliminating "y"
multiple equation 1 by 3 and equation 2 by 1
3×2x - 3y = 3×11
6x - 3y = 33 -----(3)
x + 3y = -5 ------(2)
add eqn (3) and eqn(2)
7x + 0 = 28
7x/7 = 28/7
x = 4
I hope this will help you, good luck!!!
Answer: 3/5
Step-by-step explanation: thats your answer.
Answer:
The correct answer is D. (1,6)
Step-by-step explanation:
When plugged into the equations, it is written 10(1) + 2(6) = 22 and 3(1) - 4(6) = -21. For the first one, 10 x 1 = 10 and 2 x 6 = 12. 10 + 12 = 22. For the second one, 3 x 1 = 3 and 4 x 6 = 24. 3 - 24 = -21. This makes both equations correct, making (1,6) the answer.
Answer:
C = pi x 12/ A
Step-by-step explanation:
Formula is 2pi r
2 x r is diameter
diameter x pi = circumference
12 is diameter of this because radius x 2 is diameter.
therefore, 12 pi = c
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1/2(4 - 2x) = 2 - 2x
2 - x = 2 - 2x
2 - 2 = -2x + x
0 = x
