Answer:
Speed is 50 miles per hour.
Step-by-step explanation:
Given : If you're driving one and a half miles per minute, slow down by 15 miles per hour, and then reduce your speed by one third,
To find : How fast are you going now?
Solution :
The relationship between time, speed and distance is
[tex]\text{Distance}=\text{Speed} \times \text{ Time}[/tex]
You're driving one and a half miles per minute,
i.e, [tex]1.5\text{ miles} \times 60 \text{ minutes} = 90 \text{ mph}[/tex]
Slow down by 15 miles per hour,
Speed became [tex]90-15=75\text{ mph}[/tex]
Then reduce your speed by one third,
[tex]\frac{1}{3} \text{ of } 75= \frac{1}{3}\times 75=25 \text{ mph}[/tex]
Speed is 75-25=50 mph.
