Team Tool Bella's average rate was 3 miles per hour.
8x + 16 =6x
16 = 6x-8x
16 = -2x
X=-8
Answer:
50 km/hr
Step-by-step explanation:
D = RT
Time for first part of trip = 80/60 = 4/3 hr.
Time for second part of trip = 20/30 = 2/3 hr.
total time for entire trip = 4/3 + 2/3 = 6/3 = 2 hr.
Total distance = 100 km
Average rate of speed for entire trip = 100/2 = 50 km/hr
In 10 minutes, Tom eats (5 cookies/minute)×(10 minutes) = 50 cookies.
Andy must eat the remaining cookies:
... 80 cookies - 50 cookies = 30 cookies.
_____
The answer to the question asked is
Andy must eat 30 cookies.
The answer to the question not asked is
Andy eats those cookies at the rate
... (30 cookies)/(10 minutes) = 3 cookies/minute
