C is the answer because the fractions are not proportional.
Answer: C. 9/14, 3/4
Your answer is 110/119
11/17 Divided By 7/10
11 * 10
17 * 7
110/119
That number can't be simplified, so that is your final answer.
Best of luck,
- Ari -
This problem is an example of an arithmetic series.
The common difference of the second term (15) with the first term (9) and the third term (21) with the second term (15) [15-9=6; 21-15=6] is 6.
The formula for solving this is:
An= A1 +(n-1)*d where An is the nth term, A1 is the first term, n is the number of terms and d is the common difference.
An=9+ (31-1)*6 = 189
The answer is 189.
It’s 56 degrees. All the outside values equal 360 so you make them equal to that to solve for x and you get x=18. Then you solve for C and get 124. Then subtract 180-124 for DCE and you get 56
