W= 6/5L L=12 inches
W=14.4 inches
perimeter of rectangle = 2(W+L)
=2(14.4+12)
=2(26.4)
=52.8 inches
First angle is x
x + (x + 45) + 2x = 180
4x + 45 = 180
4x = 180 - 45 = 135
x = 135 divided by 4
x = 33.75
first angle 33.75
second angle 78.75
third angle 67.5
checking
33.75 + 78.75 + 67.5 = 180
Choice A is one of the answers. Nice work. This is because x+x+x turns into 3x.
Choice D is the other answer because 2(x+1) + x = 2x+2+x = 3x+2. You can find this through trial and error. Or you could graph y = x+x+x+2 and y = 2(x+1)+2 to find that they are the same exact identical diagonal line. A non-graph approach would be to set up a table of values to see that the two tables are identical.
Answer: 5x+3
Let's go over this problem step by step:
First, you need to combine all the line terms.
2x + 1 + 3x + 2
Next, you get this equation:
( 2x + 3x ) + ( 1 + 2 )
2x and 3x is 5x. 1 and 2 is 3.
So your final answer is 5x+3.