Answer:
12
Step-by-step explanation:
Since 15 is 3 times the ratio you multiply 4 by 3
Answer:
There are 12 boys in Ms. Stell's World History Class.
Step-by-step explanation:
The ratio we are given is 5:4.
*5 is the simplified version of 15
*4 is the simplified version of x (total number of boys)
The first thing we need to do is find the number that gives us the total number of girls (15)
5*3 = 15.
Now we do that for the 4.
[tex]\frac{5*3}{4*3}[/tex] = [tex]\frac{15}{12}[/tex]
The answer should be 15:12
Best of Luck!