adrienneross98 adrienneross98
  • 03-11-2014
  • Mathematics
contestada

suppose a varies directly as b, and a=7 when b=2 find b when a =21

Respuesta :

jackattackblunt
jackattackblunt jackattackblunt
  • 03-11-2014
because α varies directley to β
[tex] \alpha = k \beta [/tex]
(k = constant)

α=7 when β=2
7= 2k
k= [tex] \frac{7}{2} [/tex]

so when α=21
21= [tex] \frac{7}{2} [/tex] b
b= 6

Answer Link

Otras preguntas

Which two angles are complementary angles?
What is x for this instance ?
thenrue?6. Use the coordinates to prove the mostprecise classification for thequadrilateral.A(-3,1), B(0,5), C(4,2), D(1,-2)
find the area of the figure​
I need help Por favor
Why did congress create the court of appeals for the federal circuit?
Alaska is the biggest state in the United States of America , write this as a biconditional statement
(this is multiple choice and i raised points make sure to EXPLAIN !) whats the sum of f and g ? f(x)=10-2x and g(x)=7x+5 a) (f+g)(x)=5+5x b) (f+g)(x)=5+9x
What is the area for this triangle?
How was the war powers resolution intended to limit presidential authority