Mathematics, 31.08.2020 02:01, ptrlvn01

how many quarts of pure antifreeze must be added to 9 quarts of a 50% antifreeze to obtain a 60% antifreeze solution?

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Mathematics, 22.06.2019 02:30, ImmortalEnigmaYT

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Mathematics, 22.06.2019 03:20, mehnamejet92

Given a normal distribution with µ =50 and σ =4, what is the probability that 5% of the values are less than what x values? between what two x values (symmetrically distributed around the mean) are 95 % of the values? instructions: show all your work as to how you have reached your answer. don’t simply state the results. show graphs where necessary.

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Mathematics, 22.06.2019 05:00, 20jhutchinson

The equation m = 19.32v can be used to find the mass m in grams of a pure gold coin with volume v in cubic centimeters. carl has a coin with a mass of 37.8 grams. the coun's volume is 2.1 cubic centimeters. could the coin be pure gold? explain your reasoning. whoever answers this correctly gets marked brainliest! this is also worth a decent amount of points than normal questions!

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Mathematics, 22.06.2019 05:30, ali7862

Two spray paint machines are used to paint different portions of a large wall. the first machine (nicknamed "paint pro") is used for two hours. the second machine (nicknamed "goldilocks") is used for an hour and a half. when they are working at the same time, they can paint 55 square feet per minute. together they painted 5850 square feet of wall. how many square feet of wall per minute can each machine paint? e used to paint different portions of a large wall. the first machine (nicknamed "paint pro") is used for two hours. the second machine (nicknamed "goldilocks") is used for an hour and a half. when they are working at the same time, they can paint 55 square feet per minute. together they painted 5850 square feet of wall. how many square feet of wall per minute can each machine paint?

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how many quarts of pure antifreeze must be added to 9 quarts of a 50% antifreeze to obtain a 60% ant...