What are the 3 integers?
Answers
Answer:
Step The three integers are 40 , 41 , and 42-by-step explanation:
Answer:
Let 2n the smallest consecutive even number.
Let 2(n + 1) = 2n + 2 = the next consecutive even number, and ...
Let 2(n + 2) = 2n + 4 = the third consecutive
even number.
Since the sum of these 3 consecutive even numbers is 60, we can write the following equation:
2n + (2n + 2) + (2n + 4) = 60
2n + 2n + 2 + 2n + 4 = 60
By the Commutative Property of Addition, i.e. a + b = b + a, we have on the left side of the equation:
2n + 2n + 2n + 2+4 = 60
Now, collecting like-terms on the left side, we get:
Now, collecting like-terms on the left side, we get:(2 + 2 + 2)n + 6 = 60
(6)n + 6 = 60
(6)n + 6 = 606n + 6 = 60
(6)n + 6 = 606n + 6 = 60Now, in order to solve for n, we begin isolating n on the left side of the equation by subtracting 6 from both sides:
6n + 6 - 6 = 60 - 6
6n +0 = 54
6n = 54
Now, finish solving for n by dividing both sidesby 6:
(6n)/6 = 54/6
(6/6)n = 54/6
(1)n = 9
n = 9
Therefore, the smallest consecutive even number is:
2n = 2(9)
2n = 2(9)2n = 18
CHECK:2n + (2n + 2) + (2n + 4) = 60
n + 2n + 2 + 2n + 4 60
2(9) +2(9) +2 + 2(9) + 4 = 60
18 + 18 + 2 + 18 + 4 = 60
36 + 2 + 18 + 4 = 60
256 + 4 = 60
56 + 4 = 6060 = 60
Therefore, the smallest consecutive evennumber is indeed 18.
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