There are two boxes. The first box contains 6 gold and 6 silver coins. The second box contains 9 gold and 6 silver coins. A coin is randomly selected from the first box, and then it is dropped into the second bax. Then a coin is rantiomly selected from the second bax. Given that the coin from the second box is gold, what is the probability that the coin from the first bax is also gold? Caution: You have to write your answer as a decimal number rounded to at least two digits after the decimal point. For example, if your answers 0.34495621 you can enter 0.34. Do NOT use a comma, 0,34 is not acceptable.
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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