Josie rode her bike 18 miles at 12 mi/h and then rode another 24 miles at 15 mi/h.
How long did she ride in all?
A. 3.1 hours
B. 27 hours
C. 15 hours
D. 6 hours
Stacey Warren - Expert brainly.com
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This is very simple; we are trying to find how many hours she rode in total today, so our formula is :
Miles / miles per hour
For example, if she rode 25 miles in the day, going at a constant speed of 12 we would divide 25 by 12 we would find out that she rode 2.1 hours. (2.08, but I estimated)
That means what you need to do is divide the miles by the mph earlier that day, and then add it up with the later of the day.
Miles / mph + Miles / mph = hours
Do you get it? :)
So i would divide 24 by?
How many mph was she going when she rode 24? :)
time = distance / speed
So, so far we know that our equation is
Miles / mph + 24 / 15 = hours
What is the other Miles / mph ?
Miles / 12
What is the "miles" ?
t = d/t
t = 18/12 + 24/15
oops...t = d/s
Times = distance / time :P
lol...way too many formulas in math to remember
I never payed attention to formulas as a kid o.o
I always just did it logically in my head.... I would always studder when teacher asked to write out my work because I did it all mentally lol.
well...as long as you got the right answer...I don't think it really matters
Nope, they always yelled at me. o.o
"BLAH BLAH BLAH"
Like I copied off of someone else, even if I was the first one done. Lol... Elementary school logic.