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解方程,和计算题解方程:x-25%x=12(1=30%)x=919/8x-x=2/15计算题:5/9+4/7x1/26/13x25%+3/4x6/1322÷[(2/3+1/4x6/7]
题目详情
解方程,和计算题
解方程:
x-25%x=12 (1=30%)x=91 9/8x-x=2/15计算题:5/9+4/7x1/2 6/13x25%+3/4x6/13 22÷[(2/3+1/4x6/7]
解方程:
x-25%x=12 (1=30%)x=91 9/8x-x=2/15计算题:5/9+4/7x1/2 6/13x25%+3/4x6/13 22÷[(2/3+1/4x6/7]
▼优质解答
答案和解析
x-25%x=12
(1-25%)x=12
3/4x=12
x=16
(1-30%)x=91
70%x=91
x= 210
9/8x-x=2/15
(9/8-1)x=2/15
1/8x=2/15
=16/15
计算题:5/9+4/7x1/2
=5/9+2/7
=53/63
6/13x25%+3/4x6/13
=6/13×(1/4+3/4)
=6/13
22÷[(2/3+1/4x6/7]
=22÷(11/7)
=14
(1-25%)x=12
3/4x=12
x=16
(1-30%)x=91
70%x=91
x= 210
9/8x-x=2/15
(9/8-1)x=2/15
1/8x=2/15
=16/15
计算题:5/9+4/7x1/2
=5/9+2/7
=53/63
6/13x25%+3/4x6/13
=6/13×(1/4+3/4)
=6/13
22÷[(2/3+1/4x6/7]
=22÷(11/7)
=14
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