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

I need help (REAL ANSWERS ONLY)
i’m your own words explain the 18th amendment to the U.S. constitution
Jack and Jill ate a restaurant. Their bill before taxes was $175. They live in a state where the tax rate is 8.5%. What was Jack and Jill's total bill including
At what angle are the electronic and the magnetic wave related in an electromagnetic signal?
What other bold thing did Moses ask of God? Did God grant this request?
UGHH HELPP MEEE Which statement best explains the relationship between Triangle ABC and Triangle EDC ? (4 points) Triangle ABC is similar to triangle EDC , bec
Which of the following is a synonym of pejorative.a.) superlative b.) palpable.c.) critical d.) contemptible​
2 x + 3 greater-than -9 solution
The title of this text is “Men Who Built America: Carnegie.” Explain how Andrew Carnegie helped build America.
factors driving supply​