Answer:
20
Step-by-step explanation:
one way is guess and check method, you draw a table and try out 3 different consecutive even numbers to see which 3 add up to 66
Answer:
10y-30
Step-by-step explanation:
10*1y=10y
-3*10=-30
10y-30
Answer:
The mean of x and y is equal to t.
Step-by-step explanation:
Given that,
The mean of t and t+2 is x.
The mean of t and t-2 is y.
i.e.

and

The mean of x and y is :

Hence, the mean of x and y is equal to t.
<span>3n + 4 = 7
</span><span>3n = 7 - 4
3n = 3
n = 1</span>
The correct answer would be C) CBA-EFD