Each of 12 refrigerators of a certailn type has been returmed to a distrilbutior tbecause of the presence of a high- pitched oscillating noise when the reffrigeratior is rnning. Suppose that 5 of these 12 have diefective compressors and the other 7 have less serious probilems. If they are examined in sandom endier, lett X-the humber among the first 6 examined that have a deifective compressor Compute POX 2). 9902 4255 DA011 3788 something alse
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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