Question

I have this question that I quite don't understand so please someone explain to me how to do it! :D

Maria began hiking o a trail at a rate of 4 miles per hour for 30 minutes. For the next 1 hour and 15 minutes, she hiked at a rate of 3 miles per hour and completed the trail. What is the total distance Maria hiked?

Answer 1

"Maria began hiking a trail at a rate of 4 miles per hour for 30 minutes"

so how far has she gone?

Answer 2

2 miles

Answer 3

good

Answer 4

I know that the 1 hour and 15 minutes got me.

Answer 5

15 min = 15/60 = 1/4 = 0.25 hours

So 1 hr, 15 min = 1 hr + 15 min = 1 hr + 0.25 hr = 1.25 hr

Answer 6

I'm converting to hours because the speed is given in miles per hour

Answer 7

Ok i dont understand.

Answer 8

do you see how 15 min is 0.25 hrs?

Answer 9

How do i convert 1 hour and 15 minutes?

Answer 10

Yes I see that.

Answer 11

ok so 1 hr and 15 min is equal to 1 hr + 15 min or 1 hr + 0.25 hr

Answer 12

Then you add 1 and 0.25 to get 1.25

Answer 13

Ok

Answer 14

Yea i see that.

Answer 15

ok so 1 hr, 15 min = 1.25 hours

Answer 16

Oh so in total i add 1.25 and 2?

Answer 17

no

Answer 18

where are you getting 2?

Answer 19

oh nvm i see

Answer 20

lol ok

Answer 21

So i do add them

Answer 22

no what you do is find the distance she traveled

she traveled at 3 mph for 1.25 hrs

Answer 23

so i divide 1.25 by 3

Answer 24

how far did she go if she traveled at 3 mph for 1.25 hrs

Answer 25

Um

Answer 26

Do i divide that?

Answer 27

how did you find 2 miles for the first part?

Answer 28

I divide 4 by 2

Answer 29

btw the site is being weird, so you may have to be patient

Answer 30

i see

Answer 31

well you should have thought of 30 minutes as 1/2 an hour, or 0.5 hours

so 4*(1/2) = 2 or 4*(0.5) = 2

Answer 32

for the second part, 3*(1.25) = 3.75 is the distance she traveled

Answer 33

lol i did

Answer 34

So how exactly do I get the answer of 1 hour and 15 mins

Answer 35

like I did above, you multiply

Answer 36

since d = r*t

Answer 37

r?

Answer 38

and t?

Answer 39

r is the rate, t is the time

Answer 40

rate = speed

Answer 41

oh

Answer 42

so 1.25 times 3

Answer 43

yes

Answer 44

equals 3.75

Answer 45

So i add 3.75 and 2

Answer 46

this is only possible once you have converted everything to hours

Answer 47

yes to get 5.75 as the total distance

Answer 48

oh ok thank you!

Answer 49

you're welcome

Answer 50

:D