Multiply your outside number and your answer to see if you got the number inside the box
Answer:
I think the answer for the first one is 3 I am not sure about the second one
Answer:
a(n) = 1 + 7(n-1)
Step-by-step explanation:
The mean can be found by adding the two numbers and dividing by 2
let the second number be y
(x + y)/2 = 1/2x + 1
solve for y
multiply each side by 2
x + y = 2(1/2x + 1)
distribute
x + y = x + 2
subtract x on both sides
y = 2
ANSWER: the second number is 2
