若[(315+213)÷△-0.8]×1113=6,则△=______.-数学

题目简介

若[(315+213)÷△-0.8]×1113=6,则△=______.-数学

题目详情

若[(3
1
5
+2
1
3
)÷△-0.8]×11
1
3
=6,则△=______.
题型:填空题难度:偏易来源:武汉

答案

[(3class="stub"1
5
+2class="stub"1
3
)÷△-0.8]×11class="stub"1
3
=6,
先计算先括号里面的,[5class="stub"8
15
÷△-0.8]×11class="stub"1
3
=6,
6÷11class="stub"1
3
=6×class="stub"3
34
=class="stub"9
17

class="stub"9
17
+0.8=class="stub"9
17
+class="stub"4
5
=class="stub"113
85

5class="stub"8
15
÷class="stub"113
85
=class="stub"83
15
×class="stub"85
113
=class="stub"1411
339

所以△=class="stub"1411
339

故答案为:class="stub"1411
339

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