anngooden anngooden
  • 17-11-2017
  • Mathematics
contestada

If Rhonda can type a 1000 word report in 4 hours, and while her friend Betty types on the same report, they finish it in 3 hours, how long would it take Betty to type the report by herself

Respuesta :

cla001 cla001
  • 17-11-2017
R * 4 = 1000; R = 1000 / 4 = 250
(R + B) * 3 = 1000
3R + 3B = 1000, 
3B = 1000 - 3R = 1000 - 750 = 250
B = 250/3 

t(B) = 1000 / (250/3) = 12 hours


Answer Link

Otras preguntas

if you were brahe,is it ok for you to use your observations to discover something ?Why or why not?
what is the final spinning frequency?
Read and match each sentence with its correct indirect object for the blank
The communities errors policy strategy focused on which of the following
the following sentences as inc in th Let's have a cup of coffee, ............? (Supply a correct tag)let's have a cup of copy a correct ​
Ex 6: Determine the compression in each of the three legs of the tripod subjected to the vertical 2- kN force. The weight of the legs is negligible compared wit
Help plsss I’m struggling
What am I suppose to do here?
What is the purpose of this excerpt? A. to show the unsettling memories of Klaus’s childhood B. to show the wall as a structure made of sour-smelling cement C.
Solving problems involving area