Question

The ratio of blue tacks to red tacks on the bulletin board is 3 to 5. there are 50 red tacks. how many blue tacks are on the board?

Answer 1

3 X
---- = ----
5 50

5x10=50
Therefore 3 x 10 = 30
There are 30 blue tacks.

Hope I helped ;)

Lol almost forgot the ratio is 30:50

Answer 2

3:5=x:50

Therefore 5 ×x = 50

x = 10

Therefore 3 × 10 = 30

therefore 30 blue pens

proof = 30 blue + 50 red= 3+ 5

therefore 80 = 8x