Question

a submarine travels at an elevation of -75 3/4 ft relative to sea level then its elevation changes by - 16 3/8 what is the new elevation of the submarine

Answer 1

`New = -92(1)/(8)`

Explanation:

Given:

`x = -75(3)/(4)` --- Position

`\triangle x = -16(3)/(8)` --- Change

Required

Find the new position

The new position is calculated as:

`New = x + \triangle x`

`New = -75(3)/(4) - 16(3)/(8)`

`New = -75.75 - 16.375`

`New = -92.125`

`New = -92(125)/(1000)`

`New = -92(1)/(8)`