(2y + 5)° = 4y °
- 4y + 2y° = -5°
-2y° = -5°
y =5/2
The answer is 46. Hope this helps!
Answer: She would need 40 minutes to infuse a dose.
Step-by-step explanation:
Since we have given that
Number of minutes a nurse takes to infuse a dose = 50 minutes
Rate faster by 20%
So, if the initial rate = 100%
After increasing the rate,
rate becomes 100%-20% = 80%
So, Number of minutes taken to infuse a dose now is given by

Hence, she would need 40 minutes to infuse a dose.
Answer: Fraction Form -9/8 or A. -1 1/8