a mr wikinson backpack weighs 45 pounds if there are 453.7grams in one pound what is the mass of his backpack?

mass= 45lbs* .454kg/lb

To find the mass of Mr. Wilkinson's backpack, you can use the given information that the weight of the backpack is 45 pounds, and that there are 453.7 grams in one pound.

To convert pounds to grams, you can use the conversion factor of 453.7 grams per pound.

Here is how you can calculate the mass of the backpack in grams:

1. Multiply the weight of the backpack in pounds by the conversion factor:
45 pounds × 453.7 grams/pound = 20,418.5 grams

So, the mass of Mr. Wilkinson's backpack is 20,418.5 grams.