Answer:
0.61 or 8.79
Step-by-step explanation:
h = 47t − 5t²
27 = 47t − 5t²
5t² − 47t + 27 = 0
Quadratic formula:
t = [ -b ± √(b² − 4ac) ] / 2a
t = [ -(-47) ± √((-47)² − 4(5)(27)) ] / 2(5)
t = (47 ± √1669) / 10
t ≈ 0.61 or 8.79
Answer:
2 laps per minute
0.5 minutes per lap
Step-by-step explanation:
The original ratio is 12 laps in 6 minutes, or
To find the unit rate, you divide the numerator by the denominator to find the amount per one.
laps per minute:
, 2 laps per minute
minutes per lap:
, 0.5 minutes per lap
Answer:
Idk
Step-by-step explanation:
Answer:
I need the diagram but here is all the info you can have with this.
Step-by-step explanation:
It takes 20 minutes to walk from home to school.
He walks just over 4 steps a second.