Afish tank, in a shape of rectangular prism, measures
100 cm × 60 cm × 40 cm. the water level reached the
midpoint of the base (the 50 cm mark), when the tank
was tilted to rest on a 60 cm edge, as shown in the
diagram on the right. what would be the depth of the
water, if the tank is returned to its horizontal position
(resting on its 60 cm × 100 cm base)?

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

Me d is also an option but i couldn't get it in the picture

(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.