livewithoutme56 livewithoutme56
  • 18-12-2018
  • Mathematics
contestada

The value of y is directly proportional to the value of x. If y = 288 when x = 32. What is the value of y when x = 25?


Algebra 1

Respuesta :

jimrgrant1 jimrgrant1
  • 18-12-2018

Answer:

y = 225

Step-by-step explanation:

since y and x are directly proportional the equation relating them is

y = kx ← k is the constant of proportionality

to find k use the given condition y = 288 when x = 32

k = [tex]\frac{y}{x}[/tex] = [tex]\frac{288}{32}[/tex] = 9

y = 9x ← is the equation of proportionality

when x = 25, then

y = 9 × 25 = 225


Answer Link

Otras preguntas

Please help need answer please
HELP!!! ANWSER ALL 3 QUESTIONS PLEASE! I WILL MARK THE BRAINILEST!!! FAST!!! 30 POINTS​
helppp i have the picture​
a chemical reaction is an interaction that always causes what
Match each equation to its graph. Use the drop-down menus to describe the equations. y = x + 1 y = x2 y = ( 3 2 ) x y = x2 + 2 x2 − 2
Who presides over the Senate when the president of the Senate is not present?
What is the simplified form of x minus 5 over x squared minus 3x minus 10 ⋅ x plus 2 over x squared plus x minus 12 ?
What is the solution to this system of linear equations? 7x – 2y = –6 8x y = 3 (–6, 3) (0, 3) (1, –5) (15, –1)
PLS HELP IM DESPERATE
A bird is flying at 50 km per hour. Which table represents this situation? Answers are in the picture below.