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

PLEASE HELP FIRST CORRECT ANSWER GETS BRAINLIEST!!!!!!!!!
A 12-ounce bottle of soap costs $2.50. How many ounces would be in a bottle that costs $3.75?
All of the following can be associated with the treatment towards germany at the end of world war 1 except: A.Leniency B.Punitive reparations C.Humiliation D.Pu
For aerobic capacity is higher the number better
How would you alert the document author if you found a critical error or discrepancy in a dictation?
need help please solve 2 log39
help with simultaneous equations!! Plz could you help me work these 3 questions out. Thanks.
How does the democracy inhance the dignity of citizens
Suppose total cost in dollars from the production of x printers is given by c(x) = 0.0001x3 + 0.005x2 + 28x + 3000. (a) find the average rate of change of total
If the sum of the measures of the interior angles of a convex polygon is 2160°, how many sides does the polygon have?