Ans
26
Step-by-step explanation:
:D
Answer:
I believe that Kevin is 6 years old now.
Step-by-step explanation:
I used the guess and check method to figure this out.
First, I began by making Daniel 1 years old, two years ago. Kevin was 4 times as old as Daniel two years ago, so he would be 4 at the time. Now, Daniel would be 3 and Kevin would be 6 years old. The statement that Kevin is three years older than Daniel would confirm this, because 6-3=3. Hope this helps, this is my first time answering:)
The vertex will be (3/2, - 33/4)
Speed of Joe is 6 mph and that of Beatrice is 8 mph
Step-by-step explanation:
Let Joe's speed be S
Beatrice's speed be s + 2
Let Joe's time be T
Beatrice's time = T - 1/2
Then
We know that

Now
Distance =
On substituting the value
Equation corresponding to Joe
...........................(1)
Equation corresponding to Beatrice

Now solving for s and T,we get




S = 6 mph -------------------------- Joe's speed
T = 2 hours ------------------------ Joe's time
Thus Beatrice's speed is
6 + 2 = 8 mph
Beatrice's time is
