A conference centre charges £120 to hire a room, with an additional charge of £8 for each delegate.

(a)
Find the total cost (including room hire) of a conference with 30 delegates.
(b)
Write down a formula for the total cost, C,in £,ofhiring a room for a conference with N delegates.

a.) the total cost (including room hire) of a conference with 30 delegates is= $360

b.)the formula to solve this problem is
C=120+8(30)

hope that helps:)

Minor adjustment required:

b.)the formula to solve this problem is
C=120+8N

(a) To find the total cost, we need to calculate the cost of room hire and add it to the cost of delegates.

The cost of room hire is £120.
The cost per delegate is £8.

Therefore, the total cost (including room hire) of a conference with 30 delegates can be calculated as follows:

Total cost = Cost of room hire + Cost per delegate × Number of delegates
Total cost = £120 + £8 × 30
Total cost = £120 + £240
Total cost = £360

So, the total cost of hiring a room for a conference with 30 delegates is £360.

(b) To write down a formula for the total cost, C, of hiring a room for a conference with N delegates, we can use the information given.

The cost of room hire is fixed at £120.
The cost per delegate is £8.

Using this information, we can write the formula as:

C = £120 + £8N

So, the formula for the total cost, C, in £, of hiring a room for a conference with N delegates is C = £120 + £8N.