Un ciclista que circula a una velocidad de 15 km/h tarda 4 horas en recorrer un trayecto. ¿Cuánto tiempo tardará en recorrer el mismo trayecto, otro ciclista a una velocidad de 20 km/h?
¿Cuál fue la distancia que recorrió cada ciclista?
¿Cuál es el comportamiento de la velocidad y el tiempo recorrido?
¿Cuál es el valor constante, o que no cambia en este problema?

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

ghjmutmum

step-by-step explanation:

x = 17

step-by-step explanation:

1st step: isolate x.

24 - 3x = -27

-24         -24

-3x   =   -51

2nd step: divide.

-3x     =   -51

  3             3

  x       =     17

hope this

answer: it's d

step-by-step explanation: