Fist break up each number in the hundreds column add the tens and the ones then add the hundreds to the previous answer
3(k + 1) + 5k = -1 +5(k-1)
- 35
3k+3+5k= -1+5k-5-35
3k-5k+5k= -1-5-3-35
3k=-44
k= -14.6
The perimeter is the distance all the way around. So it's the sum of the lengths of all 4 sides.
From the picture, you can clearly see the lengths of all 4 sides.
Writum down and adum up !
Answer:
36°
Hint: 4*unknown + 36 = 180°
3/5 = 0.6 =60% i hope it helps.
