Mathematics, 18.12.2020 07:40 Priskittles
Question 14
Katie deposited $700 in a savings account and deposits an additional $50 each week. Glenn deposited $400 in his savings account at
the same time, and he deposits an additional $70 each week.
Let a represent the number of weeks and y be the total amount saved. What system of equations could be used to model this situation?
Answers: 3
Mathematics, 21.06.2019 16:50
The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e โ0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some โreal-worldโ examples and uses of cobalt-60
Answers: 1
Mathematics, 21.06.2019 17:00
Acylinder has volume 45ฯ and radius 3. what is itโs height?
Answers: 2
Mathematics, 21.06.2019 21:00
Evaluate this using ! 0.25^2 x 2.4 + 0.25 x 2.4^2 โ 0.25 x 2.4 x 0.65
Answers: 1
Mathematics, 22.06.2019 00:30
One positive integer is 2 less than another. the product of the two integers is 24. what are the integers
Answers: 1
Question 14
Katie deposited $700 in a savings account and deposits an additional $50 each week. Gle...
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