要完整列式1.If$7800issharedamong3personsA,B,Cintheratio1/4:1/2:1/3IfpersonsAreceivesthesmallestshare,whatistheamountthatpersonAget?2.x+6/10:x/6:6/y.Findthevaluesofxandy3.ThefigureshowsthePathenoninAthenswith
要完整列式
1.If$7800issharedamong3personsA,B,Cintheratio1/4:1/2:1/3IfpersonsAreceivesthesmallestshare,whatistheamountthatpersonAget?
2.x+6/10:x/6:6/y.Findthevaluesofxandy
3.ThefigureshowsthePathenoninAthenswithascaleof1cm:6m.ThelengthandheightofthePathenoninthefigureis5.8cmand3.6cm.
a)Calculateitsactuallengthandheight,expressyouranswerinm.
b)Iftheratioofitsactuallengthtoitsactualheightisn:1,findthevalueofn,correctanswerto3significantfigures.