Mathematics, 15.12.2021 09:00 flaco0811
1) The number of ice lollies sold, varies directly according to the temperature, T°C. When T= 20°C, the number of ice lollies sold is 300.
a) Find an equation connecting N and T.
b) Find the number of ice lollies sold when T= 25°C.
c) Find T when N= 100.
2) The time, T hours, that it takes to drive from A to B varies inversely to the speed S km/h. When S= 50 km/h, T=2 hours.
a) Find an equation connecting S and T.
b) Find T when S=80.
c) Find S when T=1
3) A carton of Apple juice is in the shape of a cuboid with base x cm by 2x cm and height h cm. The carton has a volume of 300cm^3. Find the dimensions that give the minimum surface area of the carton and comment on your answer.
Answers: 3
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Volume of cylinder with a radius of 8cm and height of 25 cm
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Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?
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1) The number of ice lollies sold, varies directly according to the temperature, T°C. When T= 20°C,...
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