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Mathematics 18 Online
OpenStudy (anonymous):

http://media.education2020.com/evresources/2090005_60cd56b6-b953-48ff-9460-3603e34e44b9.pngfind the value of x and Y please help medals rewarded stuck on this need answer for halfcredit

OpenStudy (anonymous):

that u mean?

OpenStudy (anonymous):

yes thank you

OpenStudy (anonymous):

I need help bad

OpenStudy (anonymous):

3y+(5x-100)=?

OpenStudy (anonymous):

answer choices are A:x=15, y=10 B:x=50,y=10

OpenStudy (anonymous):

3y and 5x-100 two angles on straight line

OpenStudy (anonymous):

3y+(5x-100)=180

OpenStudy (anonymous):

so it would be A

OpenStudy (anonymous):

y+140+x-20=180

OpenStudy (anonymous):

\[3y+(5x-100)=180\] \[3y+5x=180+100\] \[3y+5x=280\]

OpenStudy (anonymous):

I am thinking answer Ax=15 and y=10 amI right?

OpenStudy (anonymous):

\[y+140+x-20=180\] \[y+x+120=180\] \[y+x=180-120\] \[y+x=60\]

OpenStudy (anonymous):

\[3y+5x=280\] \[y+x=60\]

OpenStudy (anonymous):

now can u solve this system?

OpenStudy (anonymous):

medal is it A like I was thinking or is it b and can you tell me why

OpenStudy (anonymous):

B

OpenStudy (anonymous):

because 50+10=60

OpenStudy (anonymous):

x=50 , y=10

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