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 ( 17+ )
Otras preguntas
Which graph shows the same end behavior as the graph of f(x) = 2x6 – 2x2 – 5?
Which of the following statements is written in a simple past tense?
13. What are some of the ways people can benefit by looking at art?
For which of the following decreasing functions ƒ does (ƒ-¹)'(10) = −1/8? A) f(x)=-5x+15 B) f(x)=-2x^3-2x+14 C) f(x)=-x^5-4x+15 D) f(x)=e^(-2x)-x+9
A motorcycle starts from rest and maintains a constant acceleration whose magnitude is 0.45 m/s². a) Calculate how long it will take to travel a distance of 1.6
Which form of humor tends to make a point, sometimes harshly? slapstick irony a pun hyperbole
What kind of solute is most likely to dissolve in a polar solvent like ammonia (NH3)? Select all that apply. O gasoline table salt O vegetable oil water
How do the research projects and assignments in college courses differ from what younger high school students are asked to do? They require you to include more
Please help me with this question
.................................
