8B prep quiz
8B prep quiz FDMAT108-73
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This 2 page Test Prep (MCAT, SAT...) was uploaded by Abbigail Buttars on Thursday October 1, 2015. The Test Prep (MCAT, SAT...) belongs to FDMAT108-73 at Brigham Young University - Idaho taught by in Summer 2015. Since its upload, it has received 33 views. For similar materials see Math for the Real World in Math at Brigham Young University - Idaho.
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Date Created: 10/01/15
1 The population of an endangered species is falling at a rate of 7 per year Approximately how long will it take the population to drop by half Answer 10 years 2 Radioactive tritium hydrogen3 has a halflife of about 12 years which means that if yo start with 1 kg of tritium 05 kg will decay during the first 12 years How much will deca during the next 12 years Answer 025kg 4 Suppose your salary is increasing at a rate of 25 per year Then your salary will double in approximately Answer 7025 years 5 Which of the following is not a good approximation of a doubling time Answer In ation running at 35 per year will cause prices to double in about 2 years 6 A rural population is falling at a rate of 20 per decade If you wish to calculate its exact halflife you should set the fractional growth rate per decade to Answer r 02