Michael tells Erica he weighs 104 pounds. Erica says she is 44 kilograms. If there are 2.2 pounds in a kilogram, who is heavier?

Michael is heavier.

Explanation:

If Michael is 104 pounds, that is equal to 47 kg.

Erica is 44 kg which is 97 pounds.

104 is greater than 97, and 47 is greater than 44.

Michael weighs more

Explanation:

First, you need to convert either kilograms into pounds or pounds into kilograms. For this problem, I will convert kilograms into pounds.

Multiply 44kg by 2.2 pounds to find how many pounds are in 44 kg

44 x 2.2 = 96.8 pounds

Michael - 104 pounds

Erica - 96.8 pounds

Michael is heavier than Erica because he weighs 7.2 pounds more than her.

(pounds to kilograms - 104/2.2 = 47.3 kg   Michael weighs 7.3 kilograms more than Erica)

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.