The shark are fed three times a day. During the morning feeding 2/15 of a ton of the fish is fed. During the afternoon feeding the weight of fish fed will be 1/15 of a ton more than the fish fed during the morning. If the total weight of fish fed in a day is 1/2 of a ton how much is fed during the feeding at night?

1/6 of a ton.

Step-by-step explanation:

In the morning, 2/15 of a ton is fed to the fishes.

In the afternoon, weight of the feed will be 1/15 of a ton more than the fish fed during the morning.

i.e. 2/15 +1/15 = 3/15

If the total weight of fish feed in a day is 1/2 of a ton.

Therefore:

Morning Feed + Afternoon Feed + Night Feed = ½

2/15 + 3/15 + Night Feed = ½

5/15 + Night Feed = ½

⅓ + Night Feed = ½

Night Feed = ½ - ⅓ = 1/6

Therefore, in the night, the fish are fed 1/6 of a ton.

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.

the area of ​​the surface of the rectangular prism here is 250 cm2, which is the surface of the shading

step-by-step explanation: