Questions asked by fox4610

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• How do I calculate the circumference and area of a circle and the area of a sphere? These are skills that I need refreshing of. Thank you very much!
  
• The sum of two numbers is 4.5 and their product is 5. What are the two numbers? Please help me with this question. Also, could you please provide an explanation, not just the answer, so that I can learn how to solve like problems in future. Thank you!
  
• 2/x + x/18 What is x? It would also be appreciated if I could have the working out as I have a couple more like questions I wish to know how to solve myself.
  
• What are two consecutive odd numbers whose sum is 40?
  
• A dealer sold a car for $12 000 and made a profit of 25%. ( Note that here selling price = cost price + profit.) How much did the car cost the dealer?
  
• By selling his car for $12 000, Mr. Green lost 25%. (Note that here selling price = cost price - loss.) How much did Mr. Green pay for his car?
  
• An insurance company paid $320 to Heather in compensation for her stolen camera. If this was 80% of its value, what was Heather's camera worth?
  
• Adam drives for 80km at an average speed of 60 km/h and then he drives for 30km at 45 km/h. What was Adam's average speed for the entire trip?
  
• A motorist travelled at an average speed of 48 km/h for 1 1/3 hours and then drove another 56km in 2/3 of an hour. What was her average speed for the whole journey?
  
• Angelica starts on a walk at 5 kilometres an hour. Three hours later, on the same route, Janelle starts riding her bicycle at 11 kilometres an hour. When will Janelle overtake Angelica?