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klasskru [66]
3 years ago
15

Solving an Equation for a Rate Problem Stu hiked a trail at an average rate of 3 miles per hour. He ran back on the same trail a

t an average rate of 5 miles per hour. He traveled for a total of 3 hours. The equation 3t = 5(3 – t) can be used to find the time it took Stu to hike one way. How long did it take Stu to hike the trail one way?
Mathematics
2 answers:
ohaa [14]3 years ago
6 0
Given:
speed = distance / time

walking: 3 miles per hour
running 5 miles per hour
for a total of 3 hours.

3t = 5(3-t)
3t = 15 - 5t
3t + 5t = 15
8t = 15
t = 15/8
t = 1 7/8 

7/8 * 60 mins = 52.50 minutes

t = 1 hour and 52.5 minutes

It took Stu 1 hour and 52.5 minutes to hike the trail one way.
Dafna11 [192]3 years ago
5 0

Answer:

It's B (3t = 5(3 – t))

Step-by-step explanation:

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The pictorial representation of the problem is attached herewith.

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5 0
3 years ago
36 is 75% of what number
g100num [7]
Learn this and it can answer all ur percent problems
percent formula : is/of = %/100

36 is 75% of what number...
is = 36
% = 75
of = x.....because that is what u are looking for.
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is/of = %/100
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so 36 is 75% of 48
3 0
3 years ago
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