Joke Collection Website - News headlines - A class will hold a knowledge contest to celebrate the 90th anniversary of the founding of the Party. The monitor arranged for Xiaoming to buy prizes. The following two pictures were bought by Xiao Mi
A class will hold a knowledge contest to celebrate the 90th anniversary of the founding of the Party. The monitor arranged for Xiaoming to buy prizes. The following two pictures were bought by Xiao Mi
A class will hold a knowledge contest to celebrate the 90th anniversary of the founding of the Party. The monitor arranged for Xiaoming to buy prizes. The following two pictures were bought by Xiao Ming.
(1) solution: suppose 5 yuan bought x notebooks (2)5*25+8* 15=245.
300-68=232 245 is not equal to 232.
5X+8(40-X)=300-(68- 13)
5X+320-8X=300-55
-3X=-75
X=25
40-25= 15 (Ben)
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