1. The ratio of cats to dogs in a photograph is 4:7. If there are 140 dogsin the picture, how many cats are there?
In this case, there will be 80 cats. Since the ratio of cats to dogs is 4:7, and we have 140 dogs, to get this we multiply 140 by 4 to get 560. The next step is to divide 560 by 7 to get 80.
80 I'm pretty sure. I did it in my head...
4/7=x/140. figure it out
Set up a ratio:4/7 = x/140. Cross multiply7x = 560/7 /7x = 80 ANSWER