Mathematics
11 Online
OpenStudy (anonymous):
If m<2=x+8 and m<3=2x+7, what is m<2?
A. 30
B. 33
C. 57
D. 25
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
|dw:1372725906750:dw|
OpenStudy (anonymous):
is there anything else that goes with the question?
OpenStudy (anonymous):
No, that is all they give me.
OpenStudy (goldeverything):
The awnser is A
OpenStudy (anonymous):
Could you show me how you got the answer?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
no its D
OpenStudy (goldeverything):
i started at m<3=2x+7
OpenStudy (anonymous):
since you already have one angle which is 90
and you know that all triangles equal to 180
OpenStudy (goldeverything):
true
OpenStudy (anonymous):
you would first subtract 180 from 90
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
meaning that both angles equal to 90
OpenStudy (anonymous):
soo you would add the expressions of both angles and set them to equal to 90 then solve
OpenStudy (anonymous):
and the answer is 30
OpenStudy (anonymous):
Not D
OpenStudy (anonymous):
huh?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
The answer is A?
OpenStudy (anonymous):
i mean 25
OpenStudy (anonymous):
sorry
jimthompson5910 (jim_thompson5910):
how are you getting 30?
m < 2 + m < 3 = 90
x+8 + 2x + 7 = 90
3x + 15 = 90
3x = 90 - 15
3x = 75
x = 75/3
x = 25
m < 2 = x+8
m < 2 = 25 + 8
m < 2 = 33
OpenStudy (anonymous):
well x is 25 then you would plug it back in
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
so the answer is 33
OpenStudy (anonymous):
i forgot to do the second part sorry :)
OpenStudy (anonymous):
Thank you so much @jim_thompson5910. You're really saving my butt today!
jimthompson5910 (jim_thompson5910):
glad to be of help
OpenStudy (anonymous):
:)