The sum of three consecutive numbers is eighteen. of the three numbers, what is the largest number.

X = 1st number
x + 1 = 2nd number
x + 2 = 3rd number

x + (x + 1) + (x + 2) = 18...combine like terms
3x + 3 = 18
3x = 18 - 3
3x = 15
x = 5

x + 1 = 5 + 1 = 6
x + 2 = 5 + 2 = 7

7 + 6 + 5 = 18
13 + 5 = 18
18 = 18 (correct)

largest number is 7

a) SV = 2

The line that is SV actually is not the full slash. It is halfway, and we know that half of four would be two.

b) RT = 4

This time RT is a full line going all the way down. So it would be 4.

c) p = a + b + c

The lengths are all the same because we calculated in the first question that two is half of four. So the base, height, and hypotenuse are the same, 2.

2 + 2 + 2 = 6

So the perimeter of the triangle RVS is 6.