Mathematics, 27.01.2020 05:31 NobleWho
Sam and kevin both worked hard over the summer. together they earned a total of $425. kevin earned $ 25 more than sam.
a) write a system of equations for the situation. use s for the amount same earned and k for the amount kevin earned.
b) graph the equations in the system.
c) use your graph to estimate how much each person earned.
solve the system of equations by substitution.
6= -4x + y
-5x - y =21
solve the system by the elimination method.
2x + y=20
6x - 5y=12
i do not understand how to do this ..
Answers: 3
Mathematics, 21.06.2019 16:00
Svetlana's hair is 4 4 centimeters ( cm cm) long. her hair grows 1 . 5 cm 1.5cm per month. svetlana wants her hair to be less than 1 6 cm 16cm long. write an inequality to determine the number of months, m m, svetlana can allow her hair to grow so that it is less than 1 6 cm 16cm long.
Answers: 3
Mathematics, 21.06.2019 19:30
If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).
Answers: 3
Sam and kevin both worked hard over the summer. together they earned a total of $425. kevin earned $...
Mathematics, 29.07.2019 19:30
Mathematics, 29.07.2019 19:30
Mathematics, 29.07.2019 19:30
Mathematics, 29.07.2019 19:30
English, 29.07.2019 19:30
Social Studies, 29.07.2019 19:30
Computers and Technology, 29.07.2019 19:30
History, 29.07.2019 19:30
Physics, 29.07.2019 19:30