Answer:
x= -2, y = -3
Step-by-step explanation:
1. substitute x = 4+2y in the first equation: 
simplify it : 
2. isolate y in 8 + 5y = -7 --> 5y = -7 - 8 -->
3. solve for y: 5y = -15 --> y = -15/5 --> y= -3
4. solve for x: x = 4 + 2y
x = 4 + 2(-3)
x = 4 + (-6)
x = -2
By Pythagoras Theorem,
the length of the other leg= (63^2-52^2)^1/2
hope this helps :)
40%
Because, 2/5 equals 4/10. 10x10=100, so 4x10=40, so 40%.
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