Answer:
y = 0x +3 or just y = 3
Step-by-step explanation:
m= 3-3/-6-4
= 0/-10 = 0
3= 0(4) +b
3=b
Answer:
58 degrees
Step-by-step explanation:
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