Question

halla el valor dsconocido en cada proporcion
a. 5/10 = y/20
b. 4/m=2/11
c. 12/0,5=156
d. 14/16=z/8
e. x´+1 / 5 =15/16
f. 5/2=b-1/4
g. 10/2a=20/4
h. 3y/2=18/4

Answer 1

Respuesta:

Explicación paso a paso:

A--> 5/10 = y/20 --->  10/20 = y/20 ---> 10 = y

B--> 4/m = 2/11 --> 4x11 = 2 x m --> 44 = 2m --> 22 = m

C---> 12/0.5 = 156 ---> 12 = 156x0.5 --> 12 = 78    

D--> 14/16 = z/18 --> 14x18 = z x 16 ---> 252 = 16Z --> Z= 252/16 --> Z=15.75

E--> (x+1) / 5 = 15/16 ---> (x+1) · 16 = 15 ·5 --> 16x + 16 = 75 --> 16x = 75 - 16 --> x=59/16 --> x=3.6875

F--> 5/2 = b - 1/4 --> 10/4 = 4b/4 - 1/4 --> 10= 4b-1 ---> 11 = 4b --> b=11/4 --> b=2.76

G-->10/2a = 20/4 --> 40 = 40a --> a=40

H---> 3y /2 = 18/4 ---> 6y /4 = 18/4 --> 6y =18 -->y = 3