Instructions for roasting meat: Cook for 30 minutes at 230°C.
Turn down the heat to 180°C.
Allow 30 minutes cooking time for every 450g.
A piece of meat takes 23 hours altogether to cook.
How heavy is it?

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.