The diagram, not drawn to scale, shows the distances between 4 houses.
- Sarah travels from House A to House B and then to House D. Find the distance she has travelled in metres.
- The cost of petrol consumption for every km travelled is 50 cents. Find the cost of the petrol consumption to travel from House B to House C.
- Find the shortest distance to travel from House A to House D. Leave your answer in km and m.
(a)
Distance that Sarah has travelled
= 11.5 + 19.5
= 31 km
1 km = 1000 m
31 km = 31000 m
(b)
Cost of petrol consumption to travel from House B to House C
= 2.86 x 0.50
= $1.43
(c)
Distance to travel from House A to House D via House B
= 14.3 + 7.2
= 21.5 km (Shorter distance)
Distance to travel from House A to House D via House C
= 11.5 + 19.5
= 31 km (Longer distance)
Shortest distance to travel from House A to House D = 21 km 500 m
Answer(s): (a) 31000 m; (b) $1.43; (c) 21 km 500 m