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

in a walk for charity, you walk at a rate of 100 meters per minute. how long does it take to walk 2 kilometers?
What is true about the sum of the measures of any two non-right angles in a right triangle?
write this in scientific notation: 52,739
Why do you think it is so difficult for some people to accept the idea of continental drift?
Lack of a clear plan for succession negatively impacted which West African empire? Hutu Mali Ghana Songhai
You own a beauty salon where you not only cut hair but you also sell hair products. You buy a dozen barrettes for $18.00 and then sell them in your store for $2
how were the Gothic cathedrals different from earlier types of cathedrals
You want to buy the bicycle that is $116. You already have $43.50 saved and plan to save an additional $7.25 every week. Part A: Write and solve an equation to
Which statement best describes the Odyssey? A. The Odyssey was the earliest submarine used by the ancient Greeks to explore the many surrounding seas. B. The Od
Calculate the following limit: