Isabella camina 5 12 km el lunes, 8 15 km el martes y 38 km el miércoles. ¿Cuántos kilómetros ha recorrido en los tres días?

218 kilometros

12 x 5 = 60

8 x 15 = 120

60 + 120 + 38 = 218

¡Espero que esto ayude! ¡Buena suerte!

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

step-by-step explanation: