怎么做呢,大家帮帮我吧 10
2个回答
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(1/8+2/9)×72
=(9/72+16/72)×72
=25/72×72
=25
1/4×2/3÷(3/5-8/15)
=2/12÷(9/15-8/15)
=2/12÷1/15
=2/12×15
=2.5
(3/5+2.4÷2/3)÷0.7
=(3.5+2.4×3/2)÷0.7
=(3/5+3.6)÷0.7
=(0.6+3.6)÷0.7
=4.2÷0.7
=6
5/9×3/10+2/7÷2/5
=5/9×3/10+2/7×5/2
=5/30+5/7
=1/6+5/7
=7/42+30/42
=37/42
五题 1题 450×70%=315元
答;现价是315元。
2题 376×5%=18.8万元
答;该饭店3月份应该缴纳营业税是18.8万元。
3题 5000×(4.25%×3)
=5000×0.1275
=637.5元
答;到期他可取得利息是637.5元。
=(9/72+16/72)×72
=25/72×72
=25
1/4×2/3÷(3/5-8/15)
=2/12÷(9/15-8/15)
=2/12÷1/15
=2/12×15
=2.5
(3/5+2.4÷2/3)÷0.7
=(3.5+2.4×3/2)÷0.7
=(3/5+3.6)÷0.7
=(0.6+3.6)÷0.7
=4.2÷0.7
=6
5/9×3/10+2/7÷2/5
=5/9×3/10+2/7×5/2
=5/30+5/7
=1/6+5/7
=7/42+30/42
=37/42
五题 1题 450×70%=315元
答;现价是315元。
2题 376×5%=18.8万元
答;该饭店3月份应该缴纳营业税是18.8万元。
3题 5000×(4.25%×3)
=5000×0.1275
=637.5元
答;到期他可取得利息是637.5元。
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