I. Resuelve los siguientes enunciados con el Método de Sustitución: 1. Dos números están en la razón 10 : 5. Si se resta 20 al primero y se suma 20 al
segundo, la razón de ellos se invierte. ¿Cuáles son los números?
2. Hace 4 años la edad de Marisol era 8 veces la edad de Matías. En cuatro años
más la edad de Marisol será 4 veces la de Matías. ¿Cuál es la edad de cada uno?

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction