}ĿijУ@FQُI\b(jng)˽҃ɼ\Ӯa(chn)Ʒ(jng)NͬӵărijNƷƵ꠷ͻ@֪ÿ꠷ÿ@Ԫ꠷c@M.(jng)ǢՄă(yu)ݷǣÿُIʮ꠷һ@ҵă(yu)ݷǣُI꠷^
tُI@.
1ÿ꠷ÿ@ărǶ
2@FُI꠷
@
Ǵ
(sh)Ոú
ʽӷքeʾ(jng)Nҽ(jng)NُIbM
3ڣ2ėl£ͨ^ӋДൽļҽ(jng)NُI
𰸡1ÿ꠷ăr150Ԫÿ@ăr100Ԫ2ُ̈IMÞ飺100m+14000Ԫُ̈IMÞ飺80m+15000Ԫ3(dng)rҽ(jng)NُI.
1O(sh)ÿl@ĶrxԪtÿ꠷ǣx+50Ԫ(j)꠷c@Mг̼ⷽ
2(j)ס҃̈ă(yu)ݷ
3քe루2õăɂʽɵóMMб^.
⣺1O(sh)ÿ@ărxԪtÿ꠷ăr飨x+50Ԫ
(j)}ã2x+50=3x
ãx=100
x+50=150
ÿ꠷ăr150Ԫÿ@ăr100Ԫ
2ُ̈IMÞ飺150100+100m- =100m+14000Ԫ
ُ̈IMÞ飺150100+0.8100m=80m+15000Ԫ
ʴ𰸞飺100a+1400080a+15000
3(dng)rُ̈IMÞ飺100m+14000=10060+14000=20000Ԫ
ُ̈IMÞ飺80m+15000=8060+15000=19800Ԫ
19800<20000,
ஔ(dng)rҽ(jng)NُI.
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