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 (m) will it take Grandma to only have 30 weeds remaining in the garden?
Equation:
Solution:
Answer in words:
Equation: 250 - 5m = 30
Solution: Solve the equation for m.
250 - 5m = 30
-5m = 30 - 250
-5m = -220
m = (-220)/(-5)
m = 44
Answer in words: It will take Grandma 44 minutes to only have 30 weeds remaining in the garden.