Answer:
1,680
Step-by-step explanation:
We know a hummingbird beats its wings 420 times in 30 seconds. To find the unit rate, divide 420 by 30.
420/30
42/3
14 beats/second
Now we know a hummingbird beats its wings 14 times in 1 second. Two minutes equals 120 seconds. Multiply 14 by 120 to get the answer here.
14 * 120
(14 * 12) * 10
168 * 10
1,680 beats
172
rectangle: 13*9=117
Triangle: 11*5=55
13-8=5
117+55=172
Answer: -9
Step- by - step:
x+2>-7
x>-7-2
x>-9
= -9
Answer:here you go
Step-by-step explanation:
Use desmos
Answer:
72
Step-by-step explanation: 8 times 9 equals 72.
