小学六年级数学题,十万火急!!!在线等!追加追加!!!
推荐回答(6个)
1、25÷[1-1/(2+1)-1/(3+1)]=60个
这批拆游零件有60个
2、设原正方形边长是X米
X²=(X+2)×(1-10%)X
X=18
原正方形边长是18米
3、120÷(1-3/5)=300千米
A、B两地相距300千米
4、374÷(1-1/34)=1156/3立方厘米
374立方厘米的铁块化成铁水贺让时体积是1156/3立方厘米
5、设甲班原有学生X人
X×(1-1/18)=120÷2
X=54
甲禅御局班原有学生54人
1:设甲做的为X乙做的为Y,X/(Y+25)=1/3,Y/(X+26)=1/2,两市联立得方程组,可解得X=20,Y=15.
2:悄兆枯设原正方形变长为X,由题意知X的平方=0.9X(猜兄X+2),解得X=18
3:设甲车速度为X乙车速度为Y,由题知3X=5Y,5X=3Y+120,解得X=,Y=22.5,距离S=8Y+120=300
4:设铁水的体积为X,X(1-1/34)=374,X=385.333333
5:设甲班X人,则启洞可知X(1-1/18)=51,X=54
1.甲=(轿氏乙+25)\2 乙=(甲+25)\3 甲=20 乙=15 共60个闭塌散
2.x*90%*(x+2)=x*x x=2
3.甲速度为x 乙为y 则8x=8y+120 5x+5y=8x
y=360\16 两衫游地相距为8y+120=300
4.x(1-1\34)=374 x=
5.甲为x 乙为y 则x*1\18+y=17\18*x x+y=102
x=54
1、1-1÷(1/昌大蔽仿模2+1)=1/3
1-1÷(1/3+1)=1/4
25÷(1-1/3-1/4)=60(个耐州)
2、a×a=(9/10×a)×(a-2)
a=18米
3、V甲:V乙=5:3
8×120÷(8-3-3×3/5)=300米
4、374÷(1-1/34)=1156/3
5、102÷2=51
51÷(1-1/18)=54个
1.甲=(乙+25)\2 乙=(甲+25)\3 甲=20 乙=15 共60个
2.25÷(1-1/3-1/4)=60(塌扒个空掘)
2、a×a=(9/10×a)×(a-2)
a=18米
3. 解:设甲速度X,乙速度Y
5X+5Y=8X=8Y+120=S(AB的距离)
解得X=37.5
所以S=8X=300km
4.374÷(1-1/34)=1156/3立方厘米
5.甲为x 乙为y 则斗衫核x*1\18+y=17\18*x x+y=102
x=54
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