It sounds simple but I'm stupid so I need some help.
ok if a guy earns $15.00 an hour for mowing a lawn and his lawn mower can mow 25ft^2 per minute, then how long would it take to mow a lawn thats X ft^2 and how much would he earn
Thanks for the help m8 and have a good day
What's the formula for this math problem?
2017-08-16 11:57 am
回答 (5)
2017-08-16 12:09 pm
✔ 最佳答案
Area mowed per hour= (25 ft²/min) × (60 min/h)
= 1500 ft²/h
Time taken to mow for a lawn of X ft²
= (X ft²) / (1500 ft/h)
= X/1500 h
Amount earned
= ($15.00 /h) × (X/1500 h)
= $(X/100)
2017-08-16 12:04 pm
if he mows 25 square feet a minute and needs to mow X total square feet of lawn, then divide X by 25 for the minutes he works, which I will call A. If he earns $15 per hour and has worked A minutes, then divide A by 60 and multiply that by 15 (or just divide A by four, which is faster).
2017-08-16 1:48 pm
i) X/25 minutes
ii) 0.25*X/25 =
$X/100
ii) 0.25*X/25 =
$X/100
2017-08-16 12:09 pm
25 * 60 = 1500 ft^2 per hour
1/1500 = t /x
1500t = x
t = x/1500 hours to do x ft^2
15 * x/1500 = $x/100 => amount he earns to do x ft^2
1/1500 = t /x
1500t = x
t = x/1500 hours to do x ft^2
15 * x/1500 = $x/100 => amount he earns to do x ft^2
2017-08-16 8:28 pm
x/25*1/60*15/1
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