Mathematics, 18.07.2019 00:00 staxmillz
Agroup of 2 adults and 4 children spent $38 on tickets to a museum. a group of 3 adults and 3 children spent $40.50 on tickets to the museum. based on this information, how much is an adult ticket, and how much is a child ticket? 2a + 4c = 38.00 3a + 3c = 40.50 what values of a and c represent the solution to the system? a = c =
Answers: 1
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 −0.1315 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 “real-world” examples and uses of cobalt-60
Answers: 1
Mathematics, 21.06.2019 18:00
Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items
Answers: 3
Mathematics, 21.06.2019 19:00
What are the first 4 terms in the multiplication pattern given by the formula 2×4n
Answers: 1
Agroup of 2 adults and 4 children spent $38 on tickets to a museum. a group of 3 adults and 3 childr...
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