Presentation on theme: "Concrete Slab Dimensions of this concrete slab are 2.5m by 4m Find 1) The length of timber needed to form up the slab. 2) The area of the concrete slab."— Presentation transcript:
Concrete Slab Dimensions of this concrete slab are 2.5m by 4m Find 1) The length of timber needed to form up the slab. 2) The area of the concrete slab. 3) The volume of concrete needed if the slab is 5cm thick.
Concrete Truck Concrete trucks can hold 5 cubic metres of concrete in their barrels. 1) How many slabs (see previous slide) can this concrete truck pour from one barrel? It costs $210 per cubic metre of concrete. Delivery is $9 per kilometre from Tighes Hill. 2) What is the cost of having 9 cubic metres delivered to Thornton?
Concrete Labourer Kaylin is a concrete labourer and charges $50 per hour to screed and finish a concrete slab. She also charges 10% GST on the total price of the job. What is the final cost of Kaylin completing the concrete slab if she works for 3 and a half hours?
Extra Help John and Sean are concrete labourers and came to help Kaylin finish the slab. If the total cost of the job was shared equally among Kaylin, John and Sean, how much did each person receive?
Bricks Kylie is building a new house and has 8 pallets of bricks delivered to the site. Each pallet is the shape of a rectangular prism; 8 bricks high, 5 bricks wide, 5 bricks long. 1) How many bricks are in each pallet? Each brick is 20cm long, 6cm high and 10cm wide. 2) How long is the green tape used to secure each pallet of bricks?
Front Door Kylie has chosen this green (yuck!) front double door for her new house. Each door is 2.4m high and 1.2 wide. Each rectangular “cut out” has dimensions 8cm x 30cm. 1) What is the total area of the eight “cut outs”? 2) What is the remaining area of the green doors? Finlay, a painter charges $45 per square metre to paint doors (one coat only). 3) What is the cost of Finlay painting the doors, twice, in blue (her favourite colour)?