Word Problem (intermediate Algebra)

Question

How far above the water would a submarine periscope have to be above the water to locate a ship 2.3 mi away? The equation for the distance in miles that the lookout can see is
d = 1.5h, where h is the height in feet above the surface of the water. Round to the nearest hundredth.

Answer 1

d = 1.5h          given formula

2.3 = 1.5h        substitute given value

1.5333 ≈ h      divide both sides by 1.5