Let the youngest sister be n years
Lana will be 2n years, as her youngest sister is half her age
The age of the twins separately will be 2n-2 as they are 2 years younger than Lana
So, the equation looks like this:
n + 2n + 2(2n-2) = 45
Now solve for n:
3n + 4n - 4 = 45
7n - 4 = 45
7n = 49
n = 7
So the youngest sister is 7, Lana is 14 and the twins are 12. 14 + 12 + 12 + 7 =45
Answer:
3/4
Step-by-step explanation:
Parallel lines have same slopes.
Answer: the answer is -16x+7y+4z
Step-by-step explanation:
Answer:
A.aas
Step-by-step explanation:
Step-by-step explanation:
7/8 when divided equals .875. so 7/8=.875