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

plum-pudding model other name​
Determine the solution for 72 = 3(5b − 1). b = 3.5 b = 4.6 b = 5 b = 14.2
In 1860 the small towns became a city. true or false
9,835/63 what is the answer and what is the remainder
9,835/63 what is the answer and what is the remainder
A 40 inch board is to be cut into three pieces so that the second price is 4times as long as the first piece and the third piece is 5 times as long as the first
In this type of governance the power is in the hands of one person​
A scientist is working with two different concentrations of hydrochloric acid (HCI). One bottle is 80% HCI, and the other is 40% HCI. For their experiment they
Roxy's new employer pays employees bimonthly, which is twice a month. She'll earn $30 per hour with the new company. She plans to continue making extra money by
My boss is pregnant is it ok to knit him and his husband a baby sweater?