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 her to only have 30 weeds remaining in the garden?(3 points)
Equation:
Solution:
Meaning of the solution in words:
Let's say it will take her m minutes to remove all the weeds.
In 1 minute, she can remove 5 weeds, so in m minutes, she can remove 5m weeds.
Therefore, the equation is 250 - 5m = 30.
To solve for m, we can subtract 250 from both sides of the equation: 250 - 250 - 5m = 30 - 250, which simplifies to -5m = -220.
Then, we can divide both sides of the equation by -5: -5m/-5 = -220/-5, which simplifies to m = 44.
Therefore, it will take her 44 minutes to only have 30 weeds remaining in the garden.
Equation:
The number of weeds remaining in the garden = 250 - 5m
Solution:
To find the number of minutes it will take for Grandma to have only 30 weeds remaining in the garden, we need to set up the equation:
250 - 5m = 30
Now we can solve for m:
250 - 30 = 5m
220 = 5m
m = 44
Therefore, it will take Grandma 44 minutes to only have 30 weeds remaining in the garden.
Meaning of the solution in words:
Grandma estimates that there are 250 weeds in the garden. She removes weeds at a rate of 5 per minute. If she continues at this rate, it will take her 44 minutes to remove enough weeds so that only 30 weeds remain in the garden.