Mathematics, 28.12.2019 07:31 esmeralda266

Lian and her younger sister ella are 4 years apart. the sum of their ages is 20. let l be lian’s age in years and let e be ella’s age in years.
the system of linear equations that models the scenario is:
l – 4 = e
l + e = 20
how old is each sister?
lian is years old and ella is years old.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:00, yoongnzl

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Answers: 1

continue

Mathematics, 21.06.2019 21:40, jacobasencio23

Use sigma notation to represent the following series for 9 terms.

Answers: 2

continue

Mathematics, 21.06.2019 21:50, jnaifuson

What additional information is needed to prove that the triangles are congruent using the aas congruence theorem? o lolm o oama o zloa zlma o zlao – zlam

Answers: 1

continue

Mathematics, 21.06.2019 22:20, davelezow72301

An object in geometry with no width, length or height is a(n):

Answers: 1

continue

You know the right answer?

Lian and her younger sister ella are 4 years apart. the sum of their ages is 20. let l be lian’s age...