Answer :
Answer:
They spent $4 per hour hiked.
Step-by-step explanation:
They spent
- $9.00 in water.
- $5.00 in protein bars.
- $3.00 in peanuts.
Total cost $17.
Now, if the hiked from 11.30 AM to 3.45 PM, then they hike for 4 hours and 15 minutes. However, we need to transform those minutes into hours before we find the rate
[tex]15min\frac{1hr}{60min}=\frac{1}{4}hr=0.25hr[/tex]
So, they hiked for 4.25 hours.
Then, to find the unit rate of money spent per hour hiked, we just need to divide $17 by 4.25 hr.
[tex]\frac{\$17}{4.25hr}=4\frac{\$}{hr}[/tex]
Therefore, they spent $4 per hour hiked.