Answer:
x=101/65, y=-16/65. (101/65, -16/65).
Step-by-step explanation:
4x+9y=4
9x+4y=13
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9(4x+9y)=9(4)
-4(9x+4y)=-4(13)
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36x+81y=36
-36x-16y=-52
----------------------
65y=-16
y=-16/65
4x+9(-16/65)=4
4x-144/65=4
4x=4+144/65
4x=404/65
x=(404/65)/4=101/65
x=101/65, y=-16/65.
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Your answer is 76m.
a^2+b^2=c^2
57^2+b^2=95^2
3249+b^2=9025
b^2=5776
Take sqr on both sides and you get:
b=76m
yes, they are all proportional
Ok I got you First Distribute 9(3 f +2)-7f
27 f +18 -7f
Step 2 combine like terms
Step 3 common factor
Answer: 2(10 f + 9)
