The sum of 5 consecutive even numbers is 310. what is the third number in this sequence?

58, 60, 62, 64 and 66

Step-by-step explanation:

Let the first number be n.  Then the five consecutive even numbers are

n, n+2, n+4, n+6, n+8.  Adding these together and setting the sum equal to 310, we get 5n + 20 = 310.  Thus, 5n = 290, and n = 58.

The five consecutive numbers are 58, 60, 62, 64 and 66.

true

explanation:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: