Answer:
Step-by-step explanation:
Let's base this on 100%, or 100 cars, which is 100% of the cars. If 1/4 of the 100 cars are sports cars, then we have
25 sports cars and
75 sedans
If 1/5 of the total cars are red, 20 of the 100 cars are red (since 1/5 is 20).
If 1/3 of the sports cars, of which we have 25, are red, then 25/3 of the sports cars are red.
Since we have 20 total red cars and 25/3 of them are sports cars, then the rest of them must be red sedans:
Total red cars - red sports cars = red sedans
which simplifies to
Subtract 5 from 2 to get -3.
Multiply 5 and -3 to get -15.
The opposite of -15 is 15.
Add 5 and 15 to get 20.
Add 20 and 2 to get 22.
Subtract 22 from 5 to get -17.
Add -17 and 6 to get -11.