John's office recycled a total of 42 kilograms of paper over 3 weeks. After 4 weeks, how many kilograms of paper will John's office have recycled? Assume the relationship is directly proportional.

kilograms

1 answer

To find the number of kilograms of paper John's office will have recycled after 4 weeks, we can set up a proportion.

Let the number of kilograms of paper John's office will have recycled after 4 weeks be x.

We can set up the following proportion: 42 kg / 3 weeks = x kg / 4 weeks.

Cross-multiplying, we get 3*x = 42*4.

Simplifying, we get 3x = 168.

Dividing both sides by 3, we get x = 56.

Therefore, John's office will have recycled 56 kilograms of paper after 4 weeks.