the ratio of boys to girls in class is 2:3. If Ms. Wise has 24 students in her class, how many girls are in the class. Please show work
Sorry. 24 does not divide into 5 equal parts. You probably mean that there are 24 boys, or that there are 24 girls.
If boys, then 24/g = 2/3
g = 36
If there were 25 total students, then
(25-g)/g = 2/3
75-3g = 2g
g = 15
Thanks,
But that is how the teacher listed the problem. That's why we were so confused.
To determine the number of girls in the class, we first need to find the total number of parts in the ratio, which is 2 + 3 = 5.
Next, we divide the total number of students, 24, by the total number of parts in the ratio:
24 รท 5 = 4.8
Since we cannot have 0.8 of a student, we round the decimal up to the nearest whole number to find the value of one part of the ratio. Therefore, one part is equal to 5 students.
Since the ratio of boys to girls is 2:3, we know that two parts represent boys and three parts represent girls.
To find the number of girls in the class, we multiply the number of parts representing girls (three) by the value of one part (5):
3 x 5 = 15
Therefore, there are 15 girls in Ms. Wise's class.