Answer:
m<A = 50
Step-by-step explanation:
2x - 10 + 70 + x + 30 = 180
3x + 90 = 180
3x = 90
x = 30
* plug back in*
m <A = 2(30)-10
m <A = 50
A = 50
The sum of the angles of a triangle is 180 degrees
A+B+C =180
2x-10 + 70 + x+30 = 180
Combine like terms
3x +90 = 180
Subtract 90 from each side
3x +90-90 = 180-90
3x= 90
Divide each side by 3
3x/3=90/3
x =30
We want to find A
A =2x-10
= 2*30 -10
=60-10
=50
I’m pretty sure you can first do 10% at a time which you can round to 13 which is 3 so 3 plus 3 then add tax
That depends. If it is a fraction, can you cancel out some numbers? If it is an expression, can you combine like terms? Or do you need to factor?
This drawn graph is the answer
27,000 I think it's rii
