9514 1404 393
Answer:
5 miles
Step-by-step explanation:
Time/speed/distance problems can be worked a number of ways. Here, we want to know the distance walked. We know the total time and the total distance and the two different speeds. So, we can use a variable to represent the value we want to know: w = distance walked (in miles).
The total time is 9:00 -6:50 = 2:10 = 2 1/6 hours = 13/6 hours.
The total time is the sum of times for the two parts of the trip: walking and riding.
walking time = walking distance/walking speed
= w/3
riding time = riding distance/riding speed
= (20-w)/30
The total time is that given above:
w/3 +(20-w)/30 = 13/6
10w +(20 -w) = 65 . . . . . . . . multiply by 30
9w = 45 . . . . . . . . . . . . subtract 20, collect terms
w = 5 . . . . . . . . . . . divide by 9
The girl walked 5 miles.
Answer:
$51.2
Step-by-step explanation:
I think I'm not sure
Answer:
9 years
Step-by-step explanation:
Answer:
103 is the median.
Step-by-step explanation:
To find the median, you need to put the numbers in order.
100, 100, 102, 103, 103, 106, 106, 109, 109
The median is the number in the middle. After you place them in order, find the number that is in the middle and that will be the median.
Feel free to let me know if you need more help. :)
