A wildlife officer wishes to determine the number of rabbits on an island. He catches and tags 40 rabbits and releases them. One week later he catches a second sample of 60 rabbits and finds that 8 of them are tagged. Which of the following is the best estimate for the rabbit population of the island?
The square ABCD has a perimeter of 36 cm.
Katherine is a childcare worker who earns $640.00 per week. She receives a pay increase of 4% but then decides to reduce the number of hours she works each week. The reduced hours resulted in a decrease of 9% in her weekly pay. How much is she paid per week after the reduction of hours?
The following is the graph of a relationship between two quantities x and y.
The following information is given about the location of three towns X ,Y and Z :
An insurance company offers customers the following discounts on the basic annual premium for car insurance
Which of the following represents the correct solution to this pair of simultaneous equations?
The box-and-whisker plot shows the distribution of the ages of children in Algebraville in 2002 and 2012.
Brady has 16 GB of data storage space available on his computer. Approximately how many files of average size of 7.2 MB can he store?
A hospital patient is given 1.2 litres of fluid over 10 hours by intravenous drip. The fluid is delivered at a rate of 20 drops per mL. What is the required drip rate, in drops per minute?
A camera costs $449, including 12% GST. What is the price of the camera without GST, correct to the nearest dollar?
Jackson enters into an agreement with a department store to purchase a home theatre package valued at $12 600 with monthly repayments over 2 years. The store charges reducible interest of 8.2% p.a. and sets the monthly repayments at $620. What is the equivalent flat rate of interest being charged for this purchase?
A circular grass field has a diameter of 30 metres. There is a concrete rectangle in the middle with a length of 21 metres and a width of 13 metres, as shown in the diagram below.