Question

I am ashamed I need help on this easy question

Answer 1

I need help setting this up.

Answer 2

you should !

Answer 3

Your a true friend @Luis_Rivera

Answer 4

i am going to bet you use distance equals rate times time

Answer 5

D=R*T
Well, I know that rate 1=100 and you are looking for D

Answer 6

the time going was \(\frac{D}{100}\) and the time returning was \(\frac{D}{75}\) and the total time is \(7\)

Answer 7

You can believe it or not, but I was setting it up the same way in the equation box.

Answer 8

when i said distance equals rate times time, i means it and all its cousins
\[D=RT,\frac{D}{R}=T, \frac{D}{T}=R\]

Answer 9

you got it now right?

Answer 10

Do you cross multiply?

Answer 11

That is, 100D+75D=7?

Answer 12

if you mean "do i add" then yes

Answer 13

oh no!

Answer 14

\[\frac{D}{100}+\frac{D}{75}=\frac{100D+75D}{100\times 75}=7\]

Answer 15

\[\frac{ 175D }{ 7500 }=7\]

Answer 16

YEEHAWW!

Answer 17

Thanks!

Answer 18

@satellite73 , I really think this is right. Will you double check real fast?

Answer 19

Thanks again