问题
解答题
解方程.
53%χ+27%χ=320
(1-60%)χ=24.
答案
(1)53%x+27%x=320,
80%x=320,
80%x÷80%=320÷80%,
x=400;
(2)(1-60%)x=24,
40%x=24,
40%x÷40%=24÷40%,
x=60.
解方程.
53%χ+27%χ=320
(1-60%)χ=24.
(1)53%x+27%x=320,
80%x=320,
80%x÷80%=320÷80%,
x=400;
(2)(1-60%)x=24,
40%x=24,
40%x÷40%=24÷40%,
x=60.