Can you solve these math problems?
2017-10-15 7:50 am
It took Leo 3.5 hours to complete a route walking at a rate of 4.2 mph. How long would it take Leo to complete the same route walking at a rate of 2.8 mph?
回答 (6)
2017-10-16 8:26 pm
It took Leo 3.5 hours to complete a route walking at a rate of 4.2 mph.
Distance covered is 14.7 miles.
It would take Leo 5.25 hours to complete
the same route walking at a rate of 2.8 mph.
Distance covered is 14.7 miles.
It would take Leo 5.25 hours to complete
the same route walking at a rate of 2.8 mph.
2017-10-15 3:22 pm
3.5:2.8 :: 4.2:x
indirect proportion
3.5*4.2/2.8=x=5.25 hr.
indirect proportion
3.5*4.2/2.8=x=5.25 hr.
2017-10-15 8:42 am
d = st
distance = 4.2 × 3.5 = 14.7 miles
t = d/s
time = 14.7/2.8 = 5.25 hours
distance = 4.2 × 3.5 = 14.7 miles
t = d/s
time = 14.7/2.8 = 5.25 hours
2017-10-15 8:40 am
Yes.
2017-10-15 7:53 am
3.5 hours × (4.2 miles)/hour = 3.5×4.2 miles = 14.7 miles
14.7 miles × (1 hour)/(2.8 miles) = 14.7/2.8 hours = 5.25 hours
14.7 miles × (1 hour)/(2.8 miles) = 14.7/2.8 hours = 5.25 hours
2017-10-15 7:53 am
Distance = Rate • Time
D = 3.5•4.2 = 2.8T
T = (3.5•4.2)/2.8 = 5.25 hours
D = 3.5•4.2 = 2.8T
T = (3.5•4.2)/2.8 = 5.25 hours
收錄日期: 2021-05-01 21:56:27
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