Mathematics, 15.07.2019 23:40 tareas7009
Mark, jessica, and nate each downloaded music from the same website. mark downloaded 10 songs in total consisting of pop, rock, and hip hop. jessica downloaded five times as many pop songs, twice as many rock, and three times as many hip hop songs as mark. she downloaded 28 songs total. if nate downloaded 20 songs total with three times as many pop songs, three times as many rock songs, and the same number of hip hop songs as mark, how many songs of each type did mark download? (1 point)
Answers: 2
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 β0.1315 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 βreal-worldβ examples and uses of cobalt-60
Answers: 1
Mathematics, 21.06.2019 18:30
If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.
Answers: 1
Mathematics, 21.06.2019 21:00
Gabriel determined that his total cost would be represented by 2.5x + 2y β 2. his sister states that the expression should be x + x + 0.5x + y + y β 2. who is correct? explain.
Answers: 2
Mathematics, 21.06.2019 22:30
If a and βa are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|
Answers: 1
Mark, jessica, and nate each downloaded music from the same website. mark downloaded 10 songs in tot...
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