To set up consecutive even integers you use x for the first integer and x + 2 for the second integer. You add 2 since you are going to the next EVEN instead of just the next integer. Now we set up an equation = 798 and solve.
x + x + 2 = 798
2x + 2 = 798
subtract -2 from both sides
2x = 796
divide by 2 on both sides
x = 398
x + 2 = 398 + 2 = 400
CHECK 398 + 400 = 798
SURFACE AREA:i was literally just working on surface area so (15×6=90)×2=180 and then (2.26×15=33.9)×2=67.8 and then (2.26×6=13.56)×2=27.12 and add all of them together to get 274.92
Answer:
A
Step-by-step explanation:
because for each 6 you have 2
Let us assume the first even number = n
The second consecutive even number = n + 2
The third consecutive even number = n + 4
The addition of the three consecutive even numbers is 42 and it is already given in the question. Based on the information's given in the question, the answer can be easily deduced.
Then, the equation can be written as
n + (n + 2) + (n + 4) = 42
3n + 6 = 42
3n = 42 - 6
3n = 36
n = 36/3
= 12
So
The first even number = 12
The second consecutive even number = n + 2
= 12 + 2
= 14
The third consecutive even number = n + 4
= 12 + 4
= 16
So the three consecutive even numbers are 12, 14, 16.
To find a mixed number, take just divide the numerator by the denominator.
36/11 = 3 (with three remaining)
3 is the whole number, and if there's any remaining, put it in the numerator. So the answer is 3 3/11
Hope this helps! :)