Answer:
[tex]\large\boxed{9\,\text{boys and}\,12\,\text{girls}}[/tex]
Step-by-step explanation:
In this question, we're trying to find how many boys and girls are in the class.
Lets get some important information that will help us to answer the question:
Important information:
- 21 students in Mrs. Clark's class
- 3/7 of the class are boys
- 4/7 of the class are girls
With the information above, we can solve the question.
To make this easier, we could turn the fractions into percents.
[tex]3/7 = 0.42857\,\, \text{or}\,\, 0.43 = 43\%\,\, \text{This is for boys}\\\\4/7 = 0.571428\,\, \text{or}\,\, 0.57 = 57\%\,\, \text{This is for girls}[/tex]
Now, we could just multiply 21 by the right decimal in order to get the right amount of boys and girls in Mrs. Clark's classroom.
[tex]21 *0.43=9\,\,\text{boys}\\\\21*0.53=12\,\,\text{girls}[/tex]
When you solve, you would figure out that there are 9 boys and 12 girls in Mrs. Clark's class.
I hope this helped you out.
Good luck on your academics.
Have a fantastic day!
