2x + 4y = 14
4x + y = 20......multiply by -4
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2x + 4y = 14
-16x - 4y = -80 (result of multiplying by -4)
---------------add
-14x = -66....as u can see, ur y's cancel out
so ur answer is : 1st answer choice <==
** and just so u know, u could have multiplied the 1st equation by -2, and it would have cancelled out ur x's
40/11 = 3.63
hope this helps
Answer:
Root( c square -9)
Step-by-step explanation:
The answer u have is the answer for a^2
H = 60 + 8x
h = Tree's height in inches
x = years of growth
Answer:
I agree, also i think the answer is 15 :)
Step-by-step explanation:
