To solve each of the given equations:
1) 3/9 = b/12Cross multiply to solve for b:9b = 3(12)9b = 36b = 36/9b = 4
2) b/5 = 6/15Cross multiply to solve for b:15b = 5(6)15b = 30b = 30/15b = 2
3) 2/9 = 8/bCross multiply to solve for b:2b = 9(8)2b = 72b = 72/2b = 36
4) 10/b = 30/33Cross multiply to solve for b:10(33) = b(30)330 = 30bb = 330/30b = 11
Therefore, the solutions to the given equations are:1) b = 42) b = 23) b = 364) b = 11
To solve each of the given equations:
1) 3/9 = b/12
Cross multiply to solve for b:
9b = 3(12)
9b = 36
b = 36/9
b = 4
2) b/5 = 6/15
Cross multiply to solve for b:
15b = 5(6)
15b = 30
b = 30/15
b = 2
3) 2/9 = 8/b
Cross multiply to solve for b:
2b = 9(8)
2b = 72
b = 72/2
b = 36
4) 10/b = 30/33
Cross multiply to solve for b:
10(33) = b(30)
330 = 30b
b = 330/30
b = 11
Therefore, the solutions to the given equations are:
1) b = 4
2) b = 2
3) b = 36
4) b = 11