x - y = 40 ------- ( I ) X . Y =600 ---------- ( II )
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Answered by
0
Answer:
x - y = 40----(1)
+ x + y = 600----(2)
= 2x + 0 = 640
= 2x = 640
= x = 640/2
= x = 320
Answered by
0
Step-by-step explanation:
y=600/x
X-(600/x) =40
x²-40x-600=0
a=1,b=-40,c=-600
(40⁺₋√(1600+2400))/2
(40+-√(4000))/2
(40+-(63.24))/2
103.24/2 and -23.24/2
51.512 qnd -11.512
ans is 51.512
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