adjeimerian adjeimerian
  • 01-05-2018
  • Mathematics
contestada

Q is directly proportional to r. q is 76 when r is 20. work out q when r is 45.

Respuesta :

CastleRook
CastleRook CastleRook
  • 11-05-2018
q α r
q=kr
thus
k=q/r
when r=20, q=76
hence
k=76/20=
q=76/20r
when r=45 the value of q will be:
q=76/20×45
q=171
Answer Link
larrythelamb
larrythelamb larrythelamb
  • 31-03-2020

Answer:

q=171

Step-by-step explanation:

Hello there!

In this explanation k is constant and it means that q is some constant amount bigger than r.

q=kr

76=k×20

76÷20=k  

k= 3.8

q=3.8r

q=3.8×45

q=171

Answer Link

Otras preguntas

3. What document establishes the foundation of the United States government.
HELP I DONT UNDERSTAND PLSS HELP :(
When is the optimum time period for intercourse having a greater probability for conception?
Which of these theories focuses on prestige as a measure of occupational success? a. human capital theory b. status attainment theory c. Holland's theory d.
Evaluate the expression for M equals -3 -4|5+m|
Suppose that 4% of the 500 athlete in a major meet have actually taken performance enhancing drugs, and all athletes are given the drug test
pls help me i NEED THI WNP
What do we call the part of the cell that is considered the brain of the cell because it controls and directs all of the cell's activities? The chamber Cytoplas
Can you please help me with this
Suppose that you are a geologist trying to determine the relative age of several rock layers. Unfortunately there are so many unconformities in the area that it