Question

A heart has a mass of about 450 kg. Express this in milligrams

Answer 1

450,000,000mg

Explanation:

1kg= 1000g

1g= 1000mg

Let's find out how many mg is 1 kg. In order to do so, multiply 1000 by 1000.

Therefore, 1kg= 1000(1000) mg = 1 000 000 mg

Now, let's solve the question by multiplying 1,000,000 by 450 since 450kg= 450(1 kg).

450kg= 450(1 000 000) mg = 450 000 000 mg

This is also equivalent to 4.50× 10^8 mg.