ineedhelp109
ineedhelp109
12-04-2017
Mathematics
contestada
please answer the question below
Respuesta :
irspow
irspow
12-04-2017
20/t=v and 12/t=(v-4) solve both for t
t=20/v and t=12/(v-4) since t=t
20/v=12/(v-4) cross multiplying...
20v-80=12v
8v-80=0
8v=80
v=10mph
The outbound speed was 10mph
Answer Link
VER TODAS LAS RESPUESTAS ( 69+ )
Otras preguntas
which fraction is larger: 1/4 or 2/4
if you flip the coins 1000 times, what fraction do you expect would come up as:2 heads?2 tails?1 head and 1 tail?PLEASE HELP!!!!!
charlotte has 12 t-shirts. One fourth of her t-shirts are green. How many of Charlotte T-shirts are green
2x + y = 3 x - 2y = -1 If equation one is multiplied by 2 and then the equations are added, the result is _____.
There are 15 black mice in a cage. The ratio of all mice to black mice is 5:1. How many mice are in a cage?
Carlos is walking on a moving walkway. His speed is given by the function C(x) = 3 x 2 + 3x - 4, and the speed of the walkway is W(x) = x 2 - 4x + 7. 20.
which word comes from a latin word meaning lattice
which fraction is larger: 1/4 or 2/4
A writing workshop enrolls novelists and poets in a ratio of 5:3. There are 24 people at the workshop. How many novelists are there? How many poets are there
which fraction is larger: 1/4 or 2/4
