The cost of £C, of hiring a lorry to travel n miles is given by
C=a+bn where a and b are consonants
The cost of travelling 100 miles is £82. The cost of travelling 250 miles is £157.
a) Find the values of a and b
b)Work out the cost of hiring a lorry to travel 300 miles.
Please can you show the working out as well.

Question

The cost of £C, of hiring a lorry to travel n miles is given by
C=a+bn                   where a and b are consonants
The cost of travelling 100 miles is £82. The cost of travelling 250 miles is £157.
a) Find the values of a and b
b)Work out the cost of hiring a lorry to travel 300 miles.
Please can you show the working out as well.

anonymous · Answer

Solve the following for a and b:$$\{82=a+b *100,157=a+b* 250\} $$$$\left\{a=32,b=\frac{1}{2}\right\} $$

anonymous · Answer

Thank you for the medal.

anonymous · Answer

Ur welcome. Tank you for the answer. Great help!!! :)