PRUEBA Nombre: Fecha: 1. Las puntuaciones obtenidas por un grupo en una prueba han sido: 15, 20, 15, 18, 22, 13, 13, 16, 15. 19, 18, 15, 16, 20, 16, 15, 18, 16, 14, 13. a. Construir la tabla de distribución de frecuencias y dibuja el polígono de frecuencias.

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x