Question: You have 110 dogs (which is the total amount of dogs/pups) and the ratio of the puppies is 2:3. How many puppies are there?
Add 2 and 3 which adds to 5 (You need to combine all the "pie pieces")
Now, divide 110 by 5

÷

Now multiply 2 and 22

Now multiply 3 and 22

The ratio is 44:66
Answer: There are 44 puppies
Hopes this helps:
You can just download this app that I use when I need help on a problem it it called Cymath.
1. Simplify both sides
−6n=−5−5n
−6n=−5+−5n
−6n=−5n−5
2. Add 5n to both sides
−6n+5n=−5n−5+5n
−n=−5
3. Divide both sides by -1.
−n
/−1
=
−5
/−1
n=5
So the variable n, is equal to 5
21.7 so you would probably round down too 21 because you can't have 0.7 of a person
Draw a straight line with a ruler