Question

http://assets.openstudy.com/updates/attachments/51af3b89e4b05b167ed23c22-pyromancer-1370438863548-here.jpg Please read number 21 and help me solve :D

Answer 1

@Hero

Answer 2

@amistre64 @andriod09 @allopersonwhat @abbiebosworth @aditkarekatte @bhaskarbabu @BostonBlue @brookecookie @B.rad @blue_cheetah @bcheyennehaynes @countrygirl33 @caideering

Answer 3

Someone flippin help me please...

Answer 4

I am so sorry to say that i can't help you. I suck at those kinds of problems, sorry.

Answer 5

Aw that sucks. :)P Well whtevr.

Answer 6

Sorry.

Answer 7

glorified fractions .. whats the question?

Answer 8

It's TOTALLY OKAY

Answer 9

http://assets.openstudy.com/updates/attachments/51af3b89e4b05b167ed23c22-pyromancer-1370438863548-here.jpg

Answer 10

21, word problem ....

Answer 11

Read #21

Answer 12

Yes

Answer 13

find a round trip flying time

Answer 14

How do I start?

Answer 15

im gonna say you can start by calling your variables to and from .. t and f

Answer 16

you know the total distance is going to be twice the distance stated right?

Answer 17

I got 138,430/59r

Answer 18

But all I need to do is show my work and I can get an A

Answer 19

one direction is 18% faster

t + f = 2(1270)

t + ( t + t(18%)) = 2540
t + t + .18t = 2540
2.18t = 2540

Answer 20

the "format" in the book is just confusing to read, you need to be able to parse the instructions from the clutter

Answer 21

also, keep in mind the speed = distance/time

Answer 22

Ok, but how would i do this..
d/t=s
1270/1165.137615

Answer 23

d from At-Al = 1270mi

speed Al-At = 18% speed from At-Al

r = speed from At-Al in m/h

find time for a round trip
-----------------------------

r = 1270mi/t hours
k = 1270mi/t hours, times (1.18)

round trip time = r + k

thats the best i got ..... solve for t?

Answer 24

ok

Answer 25

So was mine right?

Answer 26

s = d/t

t = d/s

18% of t is equal to 18% of d/s

a little adjusting ...\[t=\frac{1270}{s}+\frac{1270(1.18)}{s}\]
\[t=\frac{1270(2.18)}{s}\]
without knowing an actual speed or time value ... this is what we would be left with

Answer 27

So we can't solve?

Answer 28

it asks for a simplified expression, not for a numerical solution

Answer 29

But in the basck of my book it says the answer is 138,430/59r

Answer 30

the "r" is how they are formating it to their own delusions :)

Answer 31

ok then how do they get the actual number?

Answer 32

the trip to is given as: r = 1270/t; or t = 1270/r

the trip back is 18% faster: r + r(.18)

adding the 2 speeds gives us a round trip speed

r + (r + r(.18))

1270 + 1270 + 1270(.18)
-------------------------
t

1270 + 1270 + 1270(.18)
-------------------------
1270/r


1270(2.18)
---------- = 2.18r
1270/r


not really sure how the back of the book is trying to get at it, or even if the book is correct

Answer 33

hmm ok..sorry it took so long..i had to pee lol