Answer:
a_n=a_1+(n-1)d
Step-by-step explanation:
sorry for late anwser
The correct answer is water
The known facts
- the sum of Natalie's age and Fred's age is 36
- the sum of Fred's age times four and Natalie's age is 72
Now, let's set up the equations where N is Natalie's age and F is Fred's age.
N + F = 36 ---- equation 1
N + 4F = 72 ---- equation 2
equation 2 minus equation 1 ---> 3F = 36 ---> F = 12, thus N = 24
Thus Fred is 12 years old, and Natalie is 24 years old.
Answer:
X is 30
Step-by-step explanation:
X is 30
23 plus 8 times 2
