John and Maria are spending the afternoon hiking in the desert. They purchased 6 bottles of water for $9.00, two protein bars fo

Question

3 years ago

9

John and Maria are spending the afternoon hiking in the desert. They purchased 6 bottles of water for $9.00, two protein bars fo

r $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.

Mathematics

1 answer:

zepelin [54] · Answer 1 · 2022-07-04T22:13:03+03:00

Answer:

<h2>They spent $4 per hour hiked.</h2>

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

$15min\frac{1hr}{60min}=\frac{1}{4}hr=0.25hr$

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.

$\frac{\$17}{4.25hr}=4\frac{\$}{hr}$

Therefore, they spent $4 per hour hiked.