Answer:
down in rate = 680-540 = 140
% change = 140*100/680 = 20.58%
Answer:
c 17
Step-by-step explanation:
because if you subtract 2 from 8 you would get 6,
6 times 2 is 12
add 5 to 12 and you get 17
Answer: n= m+8/ 6
Step-by-step explanation:
m= 6(n-8)
+8 +8
m+8=6(n)
÷6 ÷6
m+8/6 = n
Answer:
15° , 45°, 120°
Step-by-step explanation:
sum the parts of the ratio, 1 + 3 + 8 = 12 parts
the sum of the 3 angles in a triangle = 180° , then
180° ÷ 12 = 15° ← value of 1 part of the ratio, then
3 parts = 3 × 15° = 45°
8 parts = 8 × 15° = 120°
the 3 angles are 15° , 45° , 120°
