Question

The formula for determining how long a hike will take is t=1/2(d+h) , where d is the distance in miles and h is the elevation gain in thousands of feet.
Solve for h.



h=t−d/2

h=1/2 t−d

h=2d−t

h=2t−d

Answer 1

$t=\frac{1}{2}(d+h)\quad|\cdot2\\\\2t=d+h\quad|(-d)\\\\\boxed{2t-d=h}$

Answer d)

Answer 2

T=(1/2)(d+h)
T=(1/2)d+(1/2)h
T-(1/2)d=(1/2)h
(T-(1/2)d)=(1/2)h
_____________
(1/2). (1/2)

2t-d=h