Mathematics, 07.03.2021 20:00 redasher
Elena noticed that, nine years ago, her cousin Katie was twice as old as Elena was then. Then Elena said, “In four years, I’ll be as old as Katie is now!” If Elena is currently e years old and Katie is k years old, which system of equations matches the story?
1. {k-9=2e
{e+4=k
2.{2k=e=2e
{e=k+4
3.{k=2e-9
{e+4=k+4
4.{k-9=2(e-9)
{e+4=k
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 16:00
Plzzz i beg u so much asaaaap ! what is the slope of this line? enter your answer in the box.
Answers: 1
Mathematics, 21.06.2019 18:30
Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?
Answers: 1
Mathematics, 21.06.2019 20:30
In an improper fraction, is the numerator equal to, less than, or greater than the denominator
Answers: 2
Mathematics, 22.06.2019 00:30
36x2 + 49y2 = 1,764 the foci are located at: a) (-√13, 0) and (√13,0) b) (0, -√13) and (0,√13) c) (-1, 0) and (1, 0)
Answers: 1
You know the right answer?
Elena noticed that, nine years ago, her cousin Katie was twice as old as Elena was then. Then Elena...
Questions
Physics, 09.12.2019 22:31
Chemistry, 09.12.2019 22:31
History, 09.12.2019 22:31
Mathematics, 09.12.2019 22:31
Computers and Technology, 09.12.2019 22:31
Mathematics, 09.12.2019 22:31
