Respuesta :
Answer:
What is the ratio of boys to girls in simplest form?
The ratio of boys : girls →4:5 so you have 4 boys and 5 girls making the whole count 4+5=9 in its simplest form. So to change the ratio proportion into fraction proportion we have: boys →49 of the whole
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
Let's create a table
[tex]\left[\begin{array}{cc}boys&girls\\2&5\\2x&5x\end{array}\right][/tex]
2 : 5 is the same as 2x : 5x because you multiply both sides in 2:5 by x
If the ratio is 2x : 5x, what is the total?
2x + 5x = 7x
The total is 7x
However, we are given that there are 42 students
So, 7x = 42
x = 6
As we said earlier, boys = 2x
We know that x = 6, so 2x must equal to 12
There are 12 boys.
Hope this helps :)
Have a nice day!
