The sum of alex's height and ben's height is 130 inches. subtracting alex's height from ben's height yields one-third of ben's height. how tall is ben, in terms of inches?

Let Alex's height = a.

Let Ben'x height = b.

a + b = 130

b - a = b/3

Subtract b/3 from both sides int he second equation to obtain:

(2/3)b - a = 0

Add this new equation to the first original equation.

(5/3)b = 130

b = 130 * 3/5

b = 78

a + b = 130

a + 78 = 130

a = 130 - 78

a = 52

Alex's height is 52 inches, and Ben's height is 78 inches.

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.