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.
Consider a 30 inch TV with aspect ratio 16:9. The aspect ratio is width-to-height, so 16:9 means 16 inches width for every 9 inches height.
Binocular vision in humans is 114∘ on average. This means if the average human can see 57∘ to the left and right of their nose in binocular vision. [see Wikipedia "Field of view" page for a picture].
Round answers to two decimal places.
What is the width of the TV? Answer in inches
If your eyes are centered on the TV screen, what is the minimum distance from your eyes to the screen to still be able to see everything in binocular vision?
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