Seudónimo Seudónimo
  • 03-03-2016
  • Mathematics
contestada

If y is proportional to x and y = -15 when x = -20, what is the value of x when y = 12?

Respuesta :

Аноним Аноним
  • 03-03-2016
x1= -20
x2= x2
y1= -15
y2= 12

x1  : x2 ::  y1 : y2
-20 : x   :: -15: 12

Means = x and -15
Extremes= -20 and 12

Product of mean = Product of extremes
       -15x = -20*12
            x = -240/-15
            x2 = 16
Answer Link

Otras preguntas

Which of the following differs when comparing the deep ocean to the intertidal zone? •need for energy •salinity •the amount of sunlight •reliance on phytoplankt
A packet is dropped from a stationary helicopter, hovering at a height 'h' from the ground level, reaches the ground in 12s. Calculate 1) value of 'h' "displac
what type of society did stevenson live in
Why can't plants catch a cold?
Give a counter example to this statement. The quotient of two fractions between 0 and 1 is always a whole number.
Why do you think the governments of the United States and other countries encouraged people on the home front to organized programs for such activities as scrap
solve for 3x+9=44-2x
name 1 element in the periodic table that sounds like a name
by hw much is the difference of 604 and 406.64 less than thier sum ?
what are some physical changes that occur at school? at home ? in nature ?