Answer:
10 mph
Step-by-step explanation:
Let x mph be Devontre rate uphill, then x+20 mph its his rate downhill.
1. Time uphill:
2. Time downhill:
3. If it took him 20 minutes (1/3 hour) longer to ride uphill than downhill, then
Solve this equation:
The rate cannot be negative, thus, x=10 mph (rate uphill).
10 feet
justdo it you will win
Answer: 14.5
130.5 divided by 9 = 14.5
a = 36
We use pythagoras theorem here.
h = 60
p = 48
b = a
h² = p² + b²
60² = 48² + b²
3600 = 2304 + b²
b² = 3600 - 2304
b² = 1296
b = 36
Answer: a
median