Chad watched 1/3 of A movie in the morning and he watch some more at night by the end of the day he still had 1/4 of the movie left to watch how much did of the movie did Chad watch at night

5/12

Step-by-step explanation:

If the movie equals 1, then subtracting the 1/3 he watched in the morning would give you 2/3 of the movie left. Now take 2/3 and subtract what he has yet to watch and you get 5/12. So chad watched 5/12 of the movie at night.

the fraction of the movie that Chad watched at night is 5/12

Step-by-step explanation:

Let x represent the fraction of the movie that Chad watched at night.

Chad watched 1/3 of the movie in the morning and he watch some more at night. This means that the fraction of the movie that Chad watched in the morning and at night is 1/3 + x

By the end of the day he still had 1/4 of the movie left to watch. Since the entire movie is taken a 1(whole), it means that

1/3 + x + 1/4 = 1

Cross multiplying by 12(LCM), it becomes

4 + 12x + 3 = 12

4 + 3 + 12x = 12

7 + 12x = 12

12x = 12 - 7 = 5

x = 5/12

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional