In an enrichment class,1/3 are boys and the restare girls.Af
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In an enrichment class,1/3 are boys and the restare girls.After 3 girls and 3 boys leave the class,there are now 2/5 as many boys as girls.How many pupils are there in the class in the end?
在一个班级里,三分之一是男生,剩下的都是女生.3个男生和3个女生离开班级以后,现在男生人数是女生的五分之二.最后班里还有多少小学生?
21人.
设原来男生有x人,则原来女生有2x人.
x-3/2x-3=2/5
解得x=9
则现在班里有9×3-6=21(人).
21人.
设原来男生有x人,则原来女生有2x人.
x-3/2x-3=2/5
解得x=9
则现在班里有9×3-6=21(人).
In an enrichment class,1/3 are boys and the restare girls.Af
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there are many boys and girls in his class 同义句?
there are sixteen boys and fourteen girls in my class.(同义句).
There are thirteen girls and eighteen boys in our class.的同义句
There are sixteen boys and fourteen girls in my class(同义句) w
同义句转换:there are sixteen boys and fourteen girls in my class
英语翻译There are twenty-one boys and nineteen girls in my class