Dave can now mow his lawn in 20 minutes less time with the power moxer than with his hand mower. One day the power mower broke down 15 minutes after he started mowing, and he took 25 minutes more time to complete the job with the hand mower. How many minutes does dave take to mow the lawn with the power mower?
*if you could explain how you do this thatd be great because i have a test on it tomorrow..thanks!
math you mow 1/3 of a lawn, and your sister mows 2/5 of the lawn. what is the area of the entire lawn? what is the length of the section left to mow? From 30 ft by width & 121 ft (1/3 in one box , 2/5 in the second box, what is the ft in the third box?
To solve this problem, let's break it down step by step:
1. Let's assume that it takes Dave x minutes to mow the lawn with the power mower. This means that he takes (x + 20) minutes to mow the lawn with the hand mower since it takes him 20 minutes longer.
2. According to the problem, the power mower broke down 15 minutes after he started mowing. This means that Dave spent x - 15 minutes mowing with the power mower before it broke down.
3. If the power mower broke down after x - 15 minutes, then Dave spent (x - 15 + 25) minutes mowing with the hand mower to complete the job.
4. Now, we have two different expressions representing the time it takes Dave to mow the lawn with each mower:
- Time with the power mower: x minutes
- Time with the hand mower: (x - 15 + 25) minutes
5. We are given that the time with the hand mower is 20 minutes longer than the time with the power mower. Therefore, we can write the following equation:
(x - 15 + 25) = (x + 20)
6. Now, we can solve the equation:
x - 15 + 25 = x + 20
Combine like terms:
x + 10 = x + 20
Subtract x from both sides:
10 = 20
7. The equation 10 = 20 is not true, which means there is no solution. Therefore, there is no valid answer to the question. It is not possible to determine how many minutes it takes Dave to mow the lawn with the power mower based on the given information.
Hence, you can state in your response that there is no sufficient information to determine the time it takes Dave to mow the lawn with the power mower.