En el torneo de fútbol del instituto, Manuel había marcado el doble de goles que Santiago, y acaba de marcar otro gol. Entre los dos han marcado 10 goles. ¿Cuántos goles marcó Manuel y cuántos Santiago?

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

Barrett is comparing the membership fees for two museums. the art museum charges a one-time fee of $8.25 plus $2.25 per month. the science museum charges a one-time fee of $10.75 plus $3.50 per month. how much does barrett save by joining the art museum instead of the science museum?