Question

Molly is tracking the progress of her house plant's growth. Today the plant is 6 centimeters high. The plant grows 2 centimeters per day. How many days will it take for the plant to be 30 cm tall?

a. 12 days
b. 15 days
c. 18 days
d. 24 days

Answer 1

It will take 12 days for the plant to be 30 cm tall.

Step-by-step explanation:

To solve this problem, we can set up an equation to represent the relationship between the height of the plant and the number of days it has grown. Let's call the number of days it takes for the plant to reach 30 cm as 'x'. We know that the plant grows 2 cm per day, so the equation becomes:

6 + 2x = 30

To solve for 'x', we can subtract 6 from both sides of the equation:

2x = 24

Then, divide both sides of the equation by 2:

x = 12

Therefore, it will take 12 days for the plant to be 30 cm tall.