Answer:
Given that Elena is currently e years old and Katie is k years old. Now, nine years ago, Katie was twice as old as Elena was.
So, k - 9 = 2(e - 9)
⇒ k - 2e + 9 = 0 .............. (1)
And, in four years, Elena will be as old as Katie is now.
So, k = e + 4
⇒ k - e - 4 = 0 ............... (2)
Therefore, the equations (1) and (2) matches the conditions. (Answer)
Answer:
Step-by-step explanation:
5/6 + (-1/2) =
5/6 - 1/2 =
5/6 - 3/6 =
2/6 which reduces to 1/3 <====
Answer: 19 ft
Step-by-step explanation: To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides. This number divided by 2 is the width. Hope this helps :)
I feel like you need more information.(such as what is z) but, when you raise a number to the 4th power, it would mean that the number you raised to the 4th power would be multiplied by itself 4 times. then once you’ve done that you need to triple your new answer. ( new answer x 3)