th3lastsh3riff th3lastsh3riff

14-11-2018
Mathematics

contestada

2x + 5y= 18 4x + 20y= -36 Solve and Explain first to get right gets brainliest

Respuesta :

wghitustl wghitustl

14-11-2018

because 4x+20y=-36,so ( 4x+20y)/2=2x+10y=-18

(2x+10y)-(2x+5y)=-18-18

5y=-36

then y=-7.2

because 2x=18-5y

so x=(18-5y)/2=(18-5*(-7.2)）/2=27

Answer Link

Otras preguntas

Which two statements accurately describe the early history of lyric poetry? A.Lyric poetry was first composed in ancient Greece using the lyre. B.The ancient Ro

What is a verbal expression for 15+ r

what is (-8.8) in a evaluate expression

a school debate team has 4 girls and 6 boys. A total of 4 of the team members will be chosen to participate in the district debate. What is the probability that

Rachel fills 13 water bottles per hour. Alyssa fills 15 bottle of water per hour. This week Alyssa filled an additional 5 bottles of water. Write an expression

which physical quantity can be measured by finding area under a speed-time and distance-time graph each?

4,822.775 rounded to the nearest cent

Is 996 in equal greater or less than 74 ft

the president sends out a survey to a random sample of students in the school.what kind of sample is this?

how does biodiversity depend on a species' ability to reproduce