subject
Mathematics, 10.05.2021 19:50 Kiona3815

2 To determine if the class understood the fractions lesson, Mrs. Norris asked random students to solve a problem. Out of the students that answered, 80% were correct. In a class of 30 students, how many students would you expect to understand the lesson?​

ansver
Answers: 2

Another question on Mathematics

question
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 βˆ’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 β€œreal-world” examples and uses of cobalt-60
Answers: 1
question
Mathematics, 21.06.2019 17:30
2y= 3 2 xβˆ’2 y = βˆ’ 1 3 x + 1 y=βˆ’ 3 1 x+1
Answers: 1
question
Mathematics, 21.06.2019 18:30
The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.
Answers: 1
question
Mathematics, 22.06.2019 04:00
The sum of a number and 5 times the number is 18.find the number
Answers: 1
You know the right answer?
2 To determine if the class understood the fractions lesson, Mrs. Norris asked random students to so...
Questions
question
English, 14.05.2021 05:00
question
Mathematics, 14.05.2021 05:00
Questions on the website: 13722361