Answer: Maybe it's the third one I'm not completely sure. don't take my word for it.
Step-by-step explanation:
Let n = minutes since 12:00 pm when Malory catches up to Dori.
Dori travels
(50 steps/min)*(n minutes) = 50n steps
Malory begins walking at 12:20 pm, so she walks for (n - 20) minutes. She travels
(90 steps/min)*(n - 20 min) = 90n - 1800 steps
Equate the steps traveled by Dori and Malory.
90n - 1800 = 50n
40n = 1800
n = 45 min
The time corresponding to n = 45 min is 12:45 pm
Answer: 12:45 pm
Answer:
70 kg is 154.3 lbs.
Step-by-step explanation:
There is 0.453592 kilograms per pound. That is just the conversion rate.
To find how many lbs 70 kg is, we do 70/0.453592 which is 154.3236.
Okay so CBE is a right angle which equals 90 degrees. CBD and DBE makes up CBE which is 23 degrees is part of CBD. So subtract CBE from CBD to get DBE which is 67 degrees.
What vectors? do you have more info?