Question

The cost of staying in a hotel is given by the formula C=50d+20, where C is the cost in £ and d is the number of days a person stays. Find the cost of staying for:

a) 6 days
b) 2 weeks
c) If the cost is 120 then how many days the person can stay

Answer 1

a) £320

b) £720

c) 2 days

Explanation:

The question is all about inputting values and finding a result or rearranging and finding a result.

a) d = 6. C = 50(6)+20 = 320

b) d = 2x7 (7 days a week) C = 50(2x7) + 20 = 720

c) C = 120 ... 120 = 50d+20

100 =50d d = 100/50 = 2