Mathematics, 17.10.2019 12:30 Vyflores2528

3kg of salt is add to 15kg of pure water. what percentage of the mixture is salt?

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Mathematics, 21.06.2019 22:00, Thejollyhellhound20

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.

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Mathematics, 22.06.2019 01:30, Narutokun

Apasta salad was chilled in the refrigerator at 35° f overnight for 9 hours. the temperature of the pasta dish dropped from 86° f to 38° f. what was the average rate of cooling per hour?

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Mathematics, 22.06.2019 04:30, madpanda55

Atoss of a 20-sided die is equally likely to be any integer between 1 and 20 inclusive. what is the variance? provide your answer to two decimal points.

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Mathematics, 22.06.2019 05:00, amsley19

On her way to work, mrs. larsen gets a green light at a certain traffic light only 30% of the time. she wants to find the probability that she will get a green light at this traffic light all five mornings that she travels to work next week. use the following randomly generated list of 200 five-digit numbers to answer the questions and find the probability. select the digits you will use to represent a favorable outcome. how many favorable outcomes are on this list? what are they? given this simulation, what is the probability that mrs. larsen will get a green light at this traffic light all five mornings next week?