Answer:
they are asking u if the antibiotic is working the answer is b
B because DE is equal to 1/2 and AD is equal to 1/4
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

10-25x=5
subtract 10 from both sides so 5-10 is -5
so now your left with -25x=-5 then divdie -25x by -5 and rememeber -5 divided by a negative is a positive and positive divided by a posivte is a positive and negavite divided by a positive is negavtive or positive divided by a negative is a negative
so when you divide -25x by -5 you get 5 so your answer is x=-5