Use the ratio 1 pound equals about 0.45 kilograms. How many kilograms are equal to 35 pounds?

To find the number of kilograms equal to 35 pounds, we can set up a proportion using the given ratio:

1 pound = 0.45 kilograms
35 pounds = x kilograms

We can cross-multiply and solve for x:

35 pounds * 0.45 kilograms = x kilograms
x = 15.75 kilograms

Therefore, 35 pounds is equal to 15.75 kilograms.