Answer to Question #274733 in Algebra for jennylyn

Question

find the missing term in a proportion: solve for the value N.

16.5:4 = N:20

17.N:2 = 10:20

18.6:N = 12:36

19.9:4 = N:16

20.5:12 = 35:N

Answer 1

16.

$$N=(5\cdot20)/4=25$$

17.

$$N=(2\cdot10)/20=1$$

18.

$$N=(6\cdot36)/12=18$$

19.

$$N=(9\cdot16)/4=36$$

20.

$$N=(35\cdot12)/5=84$$