Marco is draining his two aquariums. the tanks are the same size. one tank has 7 in. of water in it, and it is being drained at a rate of 1 in./min. the other tank has 5 in. of water in it. it is being drained at a rate of 0.5 in./min. after how many minutes will the tanks contain the same amount of water?

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Tom drove 206 miles in 3.9 hours. estimate his average speed.

Abdul is making a map of his neighborhood he knows the following information: his home, the middle school, and high school are all on the same street. his home, the elementry school, and his friends house are on the same street. the angle between the elementary school, middle school, and his home is congruent to the angle between his friends house, the high school, and his home. what theorem can abdul use to determine the two triangles are similar? a- side side side similarity theoremb- angle angle similarity theoremc- corresponding parts of similar triangles are congruentd- pieces of right triangles similarity theorem