【英语数学题】很诡异的sat代数题,算的结果和答案不一致The first of three number is 3 times the second number.The third number is 30 more than the second number.If the third number is represented by t and the sum of the first and

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【英语数学题】很诡异的sat代数题,算的结果和答案不一致The first of three number is 3 times the second number.The third number is 30 more than the second number.If the third number is represented by t and the sum of the first and
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【英语数学题】很诡异的sat代数题,算的结果和答案不一致The first of three number is 3 times the second number.The third number is 30 more than the second number.If the third number is represented by t and the sum of the first and
【英语数学题】很诡异的sat代数题,算的结果和答案不一致
The first of three number is 3 times the second number.The third number is 30 more than the second number.If the third number is represented by t and the sum of the first and second numbers is 180,which of the following equations could be used to find the value of
我的计算过程如下：设3 个数为x ,y,t
x=3y
t=30+y
x+y=180
由上得3y+y=180
y=45
代入t,t=75
答案给的是3(t-30)+(t+30)=180,为什么把t=75代入后不满足式子?我哪里算错了?求指教.

【英语数学题】很诡异的sat代数题,算的结果和答案不一致The first of three number is 3 times the second number.The third number is 30 more than the second number.If the third number is represented by t and the sum of the first and
答案错了,应该是3(t-30)+(t-30)=180

正确答案肯定是3(t-30)+(t-30)=180
意思是第一个数和第二个数的和是180，第二个数比第三个数小30，所以是t-30，第一个数是第二个数的三倍，所以是3(t-30)。关键是我的计算没有问题啊。
为什么答案和结果不一致呢？我不是说正确答案是3(t-30)+(t-30)=180么……
我这么早就给你解释了，你都不采纳！...

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正确答案肯定是3(t-30)+(t-30)=180
意思是第一个数和第二个数的和是180，第二个数比第三个数小30，所以是t-30，第一个数是第二个数的三倍，所以是3(t-30)。

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【英语数学题】很诡异的sat代数题,算的结果和答案不一致The first of three number is 3 times the second number.The third number is 30 more than the second number.If the third number is represented by t and the sum of the first and 诡异的数学题啊· 诡异的数学题啊· 一道SAT的数学题, 请问''诡异的''用英语怎么说 “诡异的项链”用英语怎么说? 诡异的图 诡异的用英语怎么说,读音像是cribby之类的. 大学趣味数学题数学代数方面的 诡异的眼神…………英语? 请出几道数学题请出几道有点难度的数学题要初一下学期的平面几何或代数题, 一道sat上的数学题(步骤) sat数学题 正解4 怎么做的 SAT上的一道数学题求教(步骤) 一道SAT上的数学题(步骤) 一道sat的简单数学题(理由) 问一道OG上的SAT数学题, 这张图有什么诡异的么?