A tank is being filled with water. The volume of water, v litres, in the tank after t minutes is given by the linear equation v=1.5t +5.5 (i) What is the initial Volume of water in the tank? (ii) What is the rate at which the volume is changing? (iii) How many litres of water is in the tank after 5 minutes? (iv) The maximum volume of the tank is 28 litres. How long will it take to fill the tank?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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