John and maria are spending the afternoon hiking in the desert. they purchased 6 bottles of water for $9.00, two protein bars for $5.00, and some peanuts for $3.00 as a snack. suppose they star hiking at 11.30 a. m. and finish the hike at 3.45 p. m. what is the unit rate of money spent to hours hiked? show your work.

Step-by-step explanation:

They spent

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

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.

Therefore, they spent $4 per hour hiked.

its the fourth option

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: