问一道SAT数学题,读不懂题.A certain scale only registers weights that are greater than 6 pounds.A person who wanted to know the weighs of a puppy,a kitten,and a bunny weighed them in pairs and got the following results.The kitten and the bun

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问一道SAT数学题,读不懂题.A certain scale only registers weights that are greater than 6 pounds.A person who wanted to know the weighs of a puppy,a kitten,and a bunny weighed them in pairs and got the following results.The kitten and the bun
问一道SAT数学题,读不懂题.
A certain scale only registers weights that are greater than 6 pounds.A person who wanted to know the weighs of a puppy,a kitten,and a bunny weighed them in pairs and got the following results.
The kitten and the bunny weighed 7 pounds.
The kitten and the puppy weighed 8 pounds.
The bunny and the puppy weighed 9 pounds.
Whats is the weight of the puppy?

问一道SAT数学题,读不懂题.A certain scale only registers weights that are greater than 6 pounds.A person who wanted to know the weighs of a puppy,a kitten,and a bunny weighed them in pairs and got the following results.The kitten and the bun
该秤只能显示6英镑以上的重量,如果你想知道小狗、小猫和小兔子之类的体重,应该同时称重两个,然后算出结果.
小猫和兔子是7英镑
小猫和小狗是8英镑
小兔子和小狗是9英镑
小狗的体重是多少哦?

就是秤只能显示6磅以上的读数,所以弄了这么个三元一次线性方程组。

5pounds.
一个天平每端只能放六磅的东西