Answer:
1. n= 30
2. n= 72
3. n= 18
4. n= 84
5. n= 9
Step-by-step explanation:
1. 3 : 5 = n : 50
3/5 = n/50
Multiplying both sides by 50 cancels on the right
50 x (3/5) = (n/50) x 50
50 x (3/5) = n
Then solving for n
n= 50 x (3/5)
n= 30
Therefore
3 : 5 = 30 : 50
2). 64 : n = 8 : 9
n/64 = 9/8
Multiplying both sides by 64
cancels on the left
64 x (n/64) = (9/8) x 64
n = (9/8) x 64
Then solving for n
n = 81 x (2/9)
n = 18
Therefore
2 : 9 = 18 : 81
4). 5 : 12 = 35 : n
12/5 = n/35
Multiplying both sides by 35
cancels on the right
35 x (12/5) = (n/35) x 35
35 x (12/5) = n
Then solving for n
n = 35 x (12/5)
n = 84
Therefore
5 : 12 = 35 : 84
5). 2 : n = 4 : 18
n/2 = 18/4
Multiplying both sides by 2
cancels on the left
2 x (n/2) = (18/4) x 2
n = (18/4) x 2
Then solving for n
n = 2 x (18/4)
n = 9
Therefore
2 : 9 = 4 : 18
