I want to record some programmes over Christmas. I have 5 hours of space left on my TV recording box. The programmes I want to record are as follows: Two Ronnies Christmas Special: 1 hour 30 mins
All Creatures Great and Small Christmas Special: 1 hour 45 mins
Die Hard 2: 1 hour 55 mins
How many minutes will I miss because the space ran out

10 minutes.

Step-by-step explanation:

5 hours = 300 minutes

90 minutes + 105 minutes + 115 minutes = 310 minutes of programmes.

310-300 = 10 leftover minutes missed

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