Tolong bantu bsok ulangan
Matematika
AlexanderBrillyan
Pertanyaan
Tolong bantu bsok ulangan
1 Jawaban
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1. Jawaban idznizhahrina
6x+10y=60
3x+5y=30
3x=30-5y
x=10-(5/3)y
L=xy
=(10-(5/3)y)(y)
=10y-(5/3)y²
L'=0
10-(10/3)y=0
10=(10/3)y
y=3
x=10-(5/3)(3)
x=10-5
x=5
L=3x5=15