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A company uses this formula to work out the cost, £A, of a taxi ride. A = 5 + 1.9m + b £5 is a fixed charge
Question
A company uses this formula to work out the cost, £A, of a taxi ride.
A = 5 + 1.9m + b
£5 is a fixed charge
m is the number of miles travelled
£b is a charge for booking online
a) Harry books a taxi online and travels 12 miles.
He pays £29.48 altogether.
How much is the charge for booking online?
b) If Sue books online and travels 20 miles, what will be
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Mathematics
3 years
2021-08-16T22:41:46+00:00
2021-08-16T22:41:46+00:00 1 Answers
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Answers ( )
Answer:
£b = £1.68
A = £44.68
Step-by-step explanation:
Given:
A = 5 + 1.9m + b
Where,
A = total cost
m = number of miles travelled
£b = charge for booking online
£5 = fixed charge
A. Harry
A = £29.48
m = 12 miles
£b = ?
A = 5 + 1.9m + b
29.48 = 5 + 1.9(12) + b
29.48 = 5 + 22.8 + b
29.48 = 27.8 + b
29.48 – 27.8 = b
b = 1.68
£b = £1.68
b) If Sue books online and travels 20 miles, what will be
A = 5 + 1.9m + b
= 5 + 1.9(20) + 1.68
= 5 + 38 + 1.68
= 44.68
A = £44.68