what are three consecutive nubers whose sum is 90?
90/3 = 30
You can take it from there.
first represent:
let x = first number
let x+1 = second number
let x+2 = third number
*note: since they are consecutive, the difference between them is 1,, that's why it's x, x+1, x+2
set up the equation and then solve for x:
x+x+1+x+2=90
3x+3=90
3x=87
x=29 *first number
x+1=30 *second number
x+2=32 *third number
so there,, =)
28,30,32
To find three consecutive numbers whose sum is 90, we'll use algebra.
Let's assume the first number is x. Then the next two consecutive numbers would be (x+1) and (x+2), respectively. The sum of these three numbers is 90, so we can set up the equation:
x + (x+1) + (x+2) = 90
Now, we can simplify the equation:
3x + 3 = 90
Subtracting 3 from both sides:
3x = 87
Dividing both sides by 3:
x = 29
Therefore, the three consecutive numbers whose sum is 90 are:
29, 30, and 31.