12. Grandma is removing weeds from her garden. She estimates that there are 250 weeds in the garden at the moment, and she can remove weeds at a rate of 5 per minute. At this rate, how many minutes will it take her to only have 30 weeds remaining in the garden?(3 points)

Equation:

Solution:
m = 44

Meaning of the solution in words:

1 answer

To determine how many minutes it will take Grandma to remove weeds until only 30 remain, we can set up the problem as follows:

  1. Identify the total weeds: Grandma starts with 250 weeds.

  2. Determine the target: She wants to have only 30 weeds left.

  3. Calculate the number of weeds to be removed:

    \[ 250 - 30 = 220 \text{ weeds} \]

  4. Determine the rate of weed removal: Grandma can remove weeds at a rate of 5 weeds per minute.

  5. Set up the equation to determine the time (m):

    \[ 5m = 220 \]

  6. Solve for m:

    \[ m = \frac{220}{5} = 44 \text{ minutes} \]

Meaning of the solution in words: It will take Grandma 44 minutes to remove enough weeds from her garden to reduce the total number of weeds from 250 to 30.