Mathematics
Mathematics, 24.06.2019 19:30, austin856

John is twice as old as mary. the sum of their ages is 21. how old is mary? let j = john's age and m = mary's age. select the system equations that represent the problem.

answer
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 18:30, JvGaming2001
School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?
Answers: 2
image
Mathematics, 21.06.2019 21:30, Usman458
About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?
Answers: 1
image
Mathematics, 21.06.2019 22:30, sonaihriley
Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.
Answers: 2
image
Mathematics, 22.06.2019 01:10, ljdavies51
Use a standard normal table to determine the probability. give your answer as a decimal to four decimal places. βˆ’1.5< < 1.5)
Answers: 3
Do you know the correct answer?
John is twice as old as mary. the sum of their ages is 21. how old is mary? let j = john's age and...

Questions in other subjects:

Konu
Mathematics, 12.01.2021 22:30
Konu
Mathematics, 12.01.2021 22:30
Konu
Mathematics, 12.01.2021 22:30