To determine which answer is correct, apply the given ratio. 1/20:? Just by looking at it we know C is wrong. 4:100 is simplified to 1:25. B is also wrong, as 180:9 is 20:1, which is backwards from 1:20. However, A is correct because 9:180 is 1:20. D is also wrong for the same reasons B and C are wrong. Your answer is A!
Answer:
3.605
Step-by-step explanation:
D=
- (6-3)2+(5-7) 2
- (3)2+(-2)2
- (9+4)
- (13)
- = 3.60551
or 3.6
or 3.605
For the second row i think it should be 2 + y = 5 because 2 x 1 equals 2
Answer:
51
Step-by-step explanation:
67 minus 16 equals 51