x+y=105 ........ (1)
4x+2y=360..... (2)
eliminasi pers (1) & (2)
x+y = 105 |×1
4x+2y = 360 |×2
diperoleh:
x + y = 105
2x+y = 180
___________ -
-x = -75
x = 75
subst nilai x = 75 ke pers (1)
x+y = 105
75 + y = 105
y = 105 - 75
y = 30
mobil = 75 × 6.000 = 450.000
motor = 30 × 2.000 = 60.000
jadi, pendapatan uang parkir nya adalah Rp. 510.000
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x+y=105 ........ (1)
4x+2y=360..... (2)
eliminasi pers (1) & (2)
x+y = 105 |×1
4x+2y = 360 |×2
diperoleh:
x + y = 105
2x+y = 180
___________ -
-x = -75
x = 75
subst nilai x = 75 ke pers (1)
x+y = 105
75 + y = 105
y = 105 - 75
y = 30
mobil = 75 × 6.000 = 450.000
motor = 30 × 2.000 = 60.000
jadi, pendapatan uang parkir nya adalah Rp. 510.000