Question
The sum of the measures of angle A and angle Y is 90. If the measure of angle X is 30 less than twice the measure of angle Y, what is the measure of angle X?
a) 20 degrees
b) 35 degrees
c) 50 degrees
d) 65 degrees
Is it d? Thank you!
a) 20 degrees
b) 35 degrees
c) 50 degrees
d) 65 degrees
Is it d? Thank you!
Answers
james
I actually think it's c.
Johnny McKarron is cool
Establish equations
x+y = 90
x = 2y - 30
...
Substitute the x = into the first equation
2y - 30 + y = 90
...
solve for y
3y - 30 = 90
3y = 90 + 30
3y = 120
y = 40
...
Substitute y into either equation and solve for x
x = 2(40) - 30 = 80 - 30 = 50
...
Solution
x = 50, y = 40
(50,40)
x+y = 90
x = 2y - 30
...
Substitute the x = into the first equation
2y - 30 + y = 90
...
solve for y
3y - 30 = 90
3y = 90 + 30
3y = 120
y = 40
...
Substitute y into either equation and solve for x
x = 2(40) - 30 = 80 - 30 = 50
...
Solution
x = 50, y = 40
(50,40)
PrinceVegeta
1.B 2.C 3.C 4.B
Rubber duck
Prince has the right answers
Shark
Prince has the right answers
girl
Prince is correct for november 2021 but here are the answer if you don't trust letter
1. 0
2. 50 degrees
3. 8
4. 25
and if you have 5
5. no solution
1. 0
2. 50 degrees
3. 8
4. 25
and if you have 5
5. no solution
Dark
Tysm girl!
beomgyu
prince is right!
.
Thanks prince
saucy santana
thank you girl ilyy🤝
Harry Potter
My answer for number three was different. Hope this helps, if not sorry. This is for solving systems using substitution.
1). 0
2). 50 degrees
3). 62
4). 25
1). 0
2). 50 degrees
3). 62
4). 25
Just Dave
Harry Potter is correct thx