Question

Exactly 150 years​ ago, students planted a tree in front of their school. Since​ then, the tree has grown 33 meters taller and the distance around the trunk has increased by 3 meters. Use pencil and paper. Describe how you can use this information to find at least two different unit rates. Then find these unit rates.

Answer 1

Explanation:

There are 2 different unit rates here:

• The increase of the tree's height per year
• The increase of the tree's trunk per year

Rate of tree's height per year

= 33m / 150 years = 0.22m per year.

Rate of tree's trunk per year

= 3m / 150 years = 0.02m per year.