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?

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered