(a) Kellie’s minutes-per-mile pace was faster than Ashley’s minutes-per-mile pace.
True
10/75 = 0.14
15/120 = 0.13
(b) Kellie ran 8 mph.
True
10 ÷ 1.15 = 8
(c) Ashley ran 12 mi in 90 min.
False
Speed = 7.5 mph
7.5 × 1.5 = 11.25 mi
Answer:
Step-by-step explanation:
Kellie ran 10 miles in 75 minutes. This means that Kellie's speed is
10/75 = 0.1333 miles per minute.
Ashley ran 15 miles in 120 minutes. This means that Ashley's speed is
15/120 = 0.125 miles per minute.
Considering the given statements,
a) Kellie’s minutes-per-mile is
75/10 = 7.5 minutes per mile
Ashley’s minutes-per-mile pace is
120/15 = 8 minutes-per-mile
Therefore, it is true that Kellie’s minutes-per-mile pace was faster than Ashley’s minutes-per-mile pace.
b)75 minutes = 1.25 hours
Kellie's speed per hour is
10/1.25 = 8 mph
It is true
c ) Ashley's speed is
15/120 = 0.125 miles per minute. In 90 minutes, she will run
90 × 0.125 = 11.25 miles
So it is false
Ashely ran 11.25miles in 90 min.
