Respuesta :
Answer:
The ratio of quarters to dimes is 4:5 .
Step-by-step explanation: when you subtract 40 from 90, you get 50. If you create a 40:50 ratio, it simplifies to 4:5 .
The answer is 4.5 the original answer is 40.50 but sense it says to simplify it leaves you with 4.5!!!