Answer:
1 and 2/13
Step-by-step explanation:
15 can go into 13 once with 2 left over.
Answer:
8kg/4 days
4kg/8 days
16kg/2 days
2kg/16 days
Step-by-step explanation:
Answer:
-3 is greater
Step-by-step explanation:
Have a good day :)
Answer:
- walking: 1.5 mph
- jogging: 3 mph
Step-by-step explanation:
Let w represent Felipe's walking speed in miles per hour. Then his total travel time is ...
time = distance/speed
3 = 3/w +3/(w+1.5) . . . . . total time is the sum of walking and jogging times
1 = 1/w +1/(w +1.5) . . . . . divide by 3
w(w +1.5) = (w+1.5) +w . . . . multiply by w(w+1.5)
w^2 -0.5w -1.5 = 0 . . . . . . subtract 2w+1.5
(w -1.5)(w +1) = 0 . . . . . . . factor
The values of w that make this equation true are w = 1.5 and w = -1. Only the value 1.5 makes any sense in this scenario. Felipe's jogging speed is then 1.5+1.5 = 3 mph.
Felipe walks at 1.5 mph and jogs at 3 mph.
