Question

For every 2 text messages that Anna sends, Kim sends 5. How many text messages would Anna send if Kim sends 40 messages?

Answer 1

He would send 100
40/2 = 20
20 x 5 = 100

Answer 2

Put it into a ratio.

2:5

Replace 5 for 40. Let Anna's messages=x.

x:40

5*9= 40

2*9=18

Anna would send 18 text messages for every 40 Kim sends.

I hope this helps!
~kaikers