Interpretación: Al lanzar una moneda y caer esta, pueden o son posibles 2 eventos: Que caiga cara (águila en México) o sello. Hay solo 1 caso favorable para que caiga cara, entre 2 posibilidades (responde cuales). Decimos entonces que la probabilidad de que caiga cara sería: "una de dos posibilidades" y escribimos ½. Esto equivale a 0,5 partes de 1 o 50 partes de 100 (50%) De igual forma; la probabilidad de que caiga sello sería : "una de dos posibilidades" y escribimos ½ que equivale a 0,5 partes de 1 o 50 partes de 100 (50%)

Beth makes batches of bluberry muffins and banna muffins. each batchis 6 muffins. she makes 2.5 batches of bluberry muffins. how many batches of bananna muffins should beth make if she wants to have a total of 60 muffins?

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

Eric and shiloh each have a savings account. the ratio of eric’s account balance to shiloh’s account balance is 4: 3. together they have a total of $140 in their accounts. use the tape diagram below to you determine the balance of eric’s account.