Answer:
4k - 8
Step-by-step explanation:
Lucy is k years old so we know k is an important part of this problem.
Sister 1 is 3 years younger, so she is k - 3 years old.
Sister 2 is 5 years less than twice Lucy's age therefore, she is 2k (twice Lucy's age) - 5 years old.
Now we have: k + (k - 3) + (2k - 5)
We can simplify like terms with the k's and get 4k. then we add (-3) and (-5) to get 4k - 8.
Hope this helps!
Answer:
#4 y=-0.5(x-4)^2+1
Step-by-step explanation:
Answer:
I believe the answer is 43.
Step-by-step explanation:
x + 12 = 55
55-12
x = 43
:)
Because they are both even numbers