25.(6分)求未知数x3/8x-0.75=12.5%x-1/(12) (1/2x+1):0.375=4/3x:1/3
1个回答
关注
展开全部
(1)251.16侧面积=8×3.14×5=125.6底面积=4×4×3.14=50.24侧面积=4×3.14×2=25.12上面积=2×2×3.14=12.56圆环面积=50.24-12.56=37.68总面积=37.68+12.52+25.12+50.24+125.6=251.16
咨询记录 · 回答于2023-07-24
25.(6分)求未知数x3/8x-0.75=12.5%x-1/(12) (1/2x+1):0.375=4/3x:1/3
25.(6分)求未知数x3/8x-0.75=12.5%x-1/(12) (1/2x+1):0.375=4/3x:1/3我正为这事儿:
您好!根据目前的题目信息来看,25.(6分)求未知数x3/8x-0.75=12.5%x-1/(12) (1/2x+1):0.375=4/3x:1/3?这是一个简单的计算题
3/8x-0.75=12.5%x-1/(12) 3/8x-1/8x=3/4-1/121/4x=9/12-1/12x=8/12×4x=8/3
(1/2x+1):0.375=4/3x:1/31/6x+1/3=4/3x×3/81/6x+1/3=1/2x1/3=1/2x-1/6x1/3=1/3xx=1
搞莫
好的
(2)1177.510÷2=5底面积=5×5×3.14=78.5圆柱体积=78.5×12=942圆锥体积=78.5×9×1/3=235.5总体积=235.5+942=1177.5
(1)251.16侧面积=8×3.14×5=125.6底面积=4×4×3.14=50.24侧面积=4×3.14×2=25.12上面积=2×2×3.14=12.56圆环面积=50.24-12.56=37.68总面积=37.68+12.52+25.12+50.24+125.6=251.16