A few days ago
Proportions…? help?
The ratio of boys to girls in a classroom is 4 to 5. If there are 27 children in the class, how many boys?
Can anyone help explain how to solve this?
Top 3 Answers
A few days ago
Favorite Answer
If the ratio is 4 boys for every 5 girls, that also means that 4/9 of the classroom is boys and 5/9 is girls.
4/9 * 27 = 12 boys
5/9 * 27 = 15 girls
1
A few days ago
Set up your proportion and then cross multiply, then divide each side. Let b be for boys. Also ratios are also fractions.
4/5=27/B
4b= 27(5)
4b=135
b=33.75
0
A few days ago
4x+5x=27
x=3
4(3)=12
1
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