Question

数学 语文练习本30本，数学练习本20本，共花费83.40元，每本语文练习本比数学练习本

贵0。44元，每本语文练习本与每本数学练习本的价格各是多少
题目错了，数学练习本应该是24本

Answer 1

设数学X元，语文X+0.44元
20X+30（X+0.44）=83.4
20X+30X+13.2=83.4
50X=70.2
X=1.404
x+0.44=1.844
所以语文练习册1.844元，数学1.404元

Answer 2

是不是语文数学加起来共五本？ 解设数学本X元，语文本(X+4)元。 2x+3(4+x)=83.4 X=14.28 大哥你是不是打错了，如果按30,20,44来算是算不出来禹

Answer 3

解：设数学每本x 元,则语文为每本（x+0.44）元，则
20x+30(x+0.44)=83.40
解得
x=1.404

Answer 4

语文书价格x，数学y，
方程组30x+20y=83.4
x-y=0.44
于是x=1.844 y=1.404

Answer 5

Mathematical language, mathematics exercise books exercise books 30 this 20 this, total cost 83.40 yuan, every this language than math exercise books your exercise-books 0. 44 yuan, every this language exercise books with each of the mathematics exercise books what is prices for each