what's the ratio of boys to girls in a class is 3:4 and if there are 12 boys in the class how many girls are ther
2 answers:
Answer:
Step-by-step explanation:
b/g=3/4 so if there are 12 boys this becomes
12/g=3/4 multiply both sides by g
12=3g/4 multiply both sides by 4
48=3g divide each side by 3
16=g
So there are 16 girls in the class.
Answer:
16
Step-by-step explanation:
Boys is written first so 3:4 the 3 stands for boy.
12 boys in class means that the 3 from 3:4 was multiplied 4 times so you do the same to other side. 4 times 4 is 16, therefore the answer is 16.
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I hope this helps!