人教版小学六年级下册数学第四单元整理和复习3

0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 3、下面每个表中的两个量,那些成比例关系?成正比例关系还是反比例关系?那些不成比例关系? (3)圆的半径与圆的面积如下表。半径/cm 面积/ cm 21π 24π 39π 4 16 π 5 25 π Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. P 66 22下面各题中的两种量之间是否有比例关系?如果有,成什么比例关系? (4)如果 y=5 X,y与X。 yx:=5 (一定)。①y与X是两种相关联的量。②③y与x成正比例关系。 Evaluation only. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd.