Mathematics, 19.08.2019 20:20 hjlhdjfhjh
Lincoln is saving $360 to buy a new bike. he already has $85 and can earn $12 per hour at work. which of the following equation describes the number of hours, h, for which lincoln must work to earn enough money to buy the new bike?
Answers: 1
Mathematics, 21.06.2019 15:30, Reese7977
Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.
Answers: 3
Mathematics, 21.06.2019 16:50, lunamoon1
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
Lincoln is saving $360 to buy a new bike. he already has $85 and can earn $12 per hour at work. whic...
Mathematics, 09.10.2019 04:00
Mathematics, 09.10.2019 04:00
Mathematics, 09.10.2019 04:00
Mathematics, 09.10.2019 04:00
Mathematics, 09.10.2019 04:00