Step-by-step Answer:
Given:
Bill : 3 minutes / apple
Frank : 5 minutes / 2 apples, or 2.5 minutes / apple.
So in 15 minutes, Bill eats 5 apples, and Frank eats 15/2.5 = 6 apples for a total of 11 apples.
To eat completely at least 12 apples, it would take 15 minutes + 1 apples, which means 17.5 minutes, with Bill having eaten 5 5/6 apples, and Frank having eaten 7 apples, exactly.
So the minimum time to eat 12 apples would be 17.5 minutes.
Note: at 18 minutes, they would have eaten 13 1/5 apples.
Angle HDF is 135 degrees as well. Alternate exterior angles are congruent. :)
I think you need more detail for people to answer
Answer:
495
Step-by-step explanation:
60x10=600
600-105=495
Assuming you mean y = 200 - 16t^2, we have all the required information needed to solve this problem. The y-value is the height of the building and the t-value represents the number of seconds after the shoe fell off.
Since we are trying to solve <em>for t</em>, we will be using our y-value. The problem states that we landed on a building with a height of 31 feet. We can plug this into the y-value, since that is what y is defined as (the height of the building).
Now we have:
31 = 200 - 16t^2
We can solve this to find t:
-169 = -16t^2
169 = 16t^2
10.5625 = t^2
3.25, -3.25 = t
We have found two answers for t. However, the negative value is not a solution because we can not have a negative number of seconds. Thus, 3.25 is the only value of t which works for this problem.
Since t is the value we are trying to find, we have our answer. The shoe hits the building after 3.25 seconds.
