3a) Answer: 84 degrees
Step-by-step explanation:
3x + 2(x+20)= 180 (total sum of angles in a triangle is 180 degrees)
5x+40 = 180
5x = 140
x= 28
3x= 28 x 3
= 84
21% were absent, if you divide 146 by 680 and multiply by 100, then round to the nearest whole number, you get 21
Answer:
30
Step-by-step explanation:
To calculate the area of a triangle you will do it like a square or rectangle but you will divide your answer by 2. So...
10 * 6 = 60
60 / 2 = 30
Answer:
each shirt is $4.20
Step-by-step explanation:
42/10 = 4.2
