A circular track for a model train has a diameter of 7.5 feet. The train moves around the track at a constant speed of 0.8 ft/s. To the nearest foot, how far does the train travel when it goes completely around the track 10 times? The train travels about feet. To the nearest minute, how long does it take the train to go completely around the track 10 times? It takes the train about minutes for the train to go around the track 10 times.
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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