3d-18=-27
3d=-27+18
3d= -9
D= -9/3
D=-3
D equals -3. Hope this helps!
Answer:
∠R = 55.6°
∠Q = 62.2°
∠S = 62.2°
Step-by-step explanation:
total interior angle sum = 180°
2x + 29 + 4x + 9 + 4x + 9 = 180
combine like terms:
10x + 47 = 180
subtract 47 from both sides of the equation:
10x = 133
divide both sides by 10:
x = 13.3
∠R = 2(13.3) + 29 = 55.6°
∠Q = 4(13.3) + 9 = 62.2°
∠S = ∠Q
The number is 2 because it multiply by 2 and 3
short answer: 7 4/15
long answer:
add the two whole numbers
cross multiply the two fractions the add
simplify
7 4/15
hope this helps <3
if this is wrong just lmk and ill fix it
