Mathematics, 13.02.2020 19:52 feastershevill
Researchers are monitoring two different radioactive substances. They have 300 grams of substance A which decays at a rate of 0.15%.
They have 500 grams of substance B which decays at a rate of 0.37%. They are trying to determine how many years it will be before the
substances have an equal mass.
If M represents the mass of the substance and trepresents the elapsed time in years, then which of the following systems of equations
can be used to determine how long it will be before the substances have an equal mass?
Answers: 1
Mathematics, 21.06.2019 13:40
Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?
Answers: 2
Mathematics, 21.06.2019 16:30
Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation
Answers: 3
Mathematics, 21.06.2019 23:00
How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)
Answers: 2
Mathematics, 21.06.2019 23:30
Which of the following vectors are orthogonal to (2,1)? check all that apply
Answers: 1
Researchers are monitoring two different radioactive substances. They have 300 grams of substance A...
Mathematics, 15.04.2021 05:10
Mathematics, 15.04.2021 05:10
Mathematics, 15.04.2021 05:10
English, 15.04.2021 05:10
Arts, 15.04.2021 05:10
Mathematics, 15.04.2021 05:20
English, 15.04.2021 05:20
Mathematics, 15.04.2021 05:20
Social Studies, 15.04.2021 05:20
Geography, 15.04.2021 05:20
Mathematics, 15.04.2021 05:20
Mathematics, 15.04.2021 05:20
Mathematics, 15.04.2021 05:20