Answer:
7.2
Step-by-step explanation:
1. Natalie needed 40 minutes to get to school. In hours 40 minutes is 40/60= 2/3 hour (because there are 60 minutes in an hour). so her speed is 14.4/(2/3)= 14.4*3/2= 21.6 mph.
2. Britany needed 40+20= 60 min. 60 min= 1 hour. so she needed 1 hour her speed is 14,4/1= 14.4mph
3. The difference 21.6-14.4=7.2 is the answer .
Answer:
The answer is C
Step-by-step explanation:
When he turned the oven off the temperature dropped. Then is stayed at a steady 0° until he turned it back on, causing the graph to move up again because the temperature rose.
A = pi*r^2
(16/25)*pi = pi*r^2
16/25 = r^2
rt(16/25) = r
r = 4/5
C = 2pi*r
C = 2pi*(4/5)
C = (8/5) pi cm
Answer:
120
Step-by-step explanation:
3+9= 12
12+27= 39
39+81= 120
Answer:
8,200
Step-by-step explanation:
