Respuesta :
Answer:
There are 27 boys in the classroom
Step-by-step explanation:
Step-by-step explanation:
40% = 4/10 = 2/5;
45÷5=9, 9×2=18; There are 18 girls in the classroom.
45-18=27; 27+18=45; There are 27 boys in the classroom.
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