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1 Write the ratio 12:30 in its simplest form. (A) 2:5 (B) 5:2 (C) 4:10 (D) 10:4 2 An item was bought for $40 and sold for $60. Find the percentage profit on the cost price. (D) 60% (A) 30% (B) 40% (C) 50% 312 marks out 48 is what as a percentage? (A) 20% (B) 24% (C) 25% (D) 30% 4 What percentage is $6 of $40 ? (A) 10% (B) 12% (C) 15% (D) 18% 5 Express 9% as a decimal. (A) 9.0 (B) 0.9 (C) 0.09 (D) none of 6 Find 40% of 120 km . (A) 3 km (B) 4.8 km (C) 30 km (D) 48 km
Arithmetic Feb 08, 2025
Find 20112−20102?
Algebra Feb 08, 2025
18 Tedco produces a teddy bear that sells for $24. Each teddy bear costs the company $8 to manufacture and there is an initial start-up cost of $7200. a Write a rule for the total cost, $T, of producing x teddy bears. b If the cost of a particular production run was $9600, how many teddy bears were manufactured in that run? c If x teddy bears are sold, write a rule for the revenue, $R, received by the company. d How many teddy bears were sold if the revenue was $8400 ? e If they want to make an annual profit of $54000, how many teddy bears do they need to sell?
Algebra Feb 08, 2025
Best. After how many hours will their hire costs be the same 15 Car A left Melbourne for Adelaide at 11.00a.m. and travelled at an average speed of 70 km per hour. Car B left Melbourne for Adelaide at 1.00 p.m. on the same day and travelled at an average speed of 90 km per hour. At what time will car B eatch up to car A?
Algebra Feb 08, 2025
Suppose that x+1x=3. Find the value of x2+1x2 without solving for x
Algebra Feb 08, 2025
10 (2 marks) A Thai restaurant offers a menu containing 65 dishes, which includes dishes with chicken, pork or prawn. The number of chicken dishes is 15 , the number of pork dishes is 15 and the number of prawn dishes is 12 . If there are 25 dishes that do not contain any of the three ingredients, determine the number of dishes on the menu that contain chicken or pork, but not prawn.
Statistics Feb 08, 2025
a m6+m2+m4
Algebra Feb 08, 2025
Task: Solve the following equations 1. 18−x=7 2. 2(3x+5)=52 3. 2x3−5=2 4. 2(3x−2)=5x+1 5. 3x−12−2x+13=−5
Algebra Feb 08, 2025
A family of five, two adults and threee children, purchased tickets to Luna Park. An adult ticket is $10 more than a shild ticket. The total cost of the tickets is $310. Find the price of an adult ticket and a child ticket, showing all working.
Algebra Feb 08, 2025
Helen said to her sister Joanna, "I have five times as many stamps in my collection as you." "Yes, you have 240 more than I have," replied Joanna. How many stamps does Joanna have? Show your working for full marks.
Algebra Feb 08, 2025
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