The answer is A because if you the formula it will equal to the solution
Answer:
12
Step-by-step explanation:
1/3 of one rectangle
1/4 of one rectangle
1/3 compared to 1/4
common would be twelfths
Average = 77=(77+80+63+61+92+Next test)/6
Therefore, 77*6=77+80+63+61+92+Next test
Next test score = (77*6)- (77+80+63+61+92)= 89
Answer:
541 (484) 783, 437 (410) 642
Step-by-step explanation:
Required
Fill in the bracket
First, we generate a formula for the first sequence: 541 (484) 783
![484 = 2 * [783 - 541]](https://tex.z-dn.net/?f=484%20%3D%202%20%2A%20%5B783%20-%20541%5D)
![484 = 2 * [242]](https://tex.z-dn.net/?f=484%20%3D%202%20%2A%20%5B242%5D)
Using the same formula for the second sequence: 437 (?) 642
![x = 2 * [642 - 437]](https://tex.z-dn.net/?f=x%20%3D%202%20%2A%20%5B642%20-%20437%5D)
Where x represents the empty bracket
![x = 2 * [205]](https://tex.z-dn.net/?f=x%20%3D%202%20%2A%20%5B205%5D)
A) arithmetic because it is a constant. E.g 5-2 is 3 and this is true through out the series
B) this is geometric because the ratio is constant. The ratio of each is 3. E.g 81/27= 3 and this is true through out the series
C) arithmetic because it is constant. 11-3= 8, and 8 is the answer through out the series
