Question

Which equation has solution x = -3?
Responses
A 2x - 7 = -12x - 7 = -1
B 3x + 8 = 13x + 8 = 1
C 12
x + 8 = 101 2 x + 8 = 10
D 12
(2x - 6) = -61 2 (2x - 6) = -6
E 12
(4x - 8) = -2

Answer 1

The elevation of the basement floor in a building is -14 ft. The elevation of the roof is 36 feet. What is the distance from the basement floor to the roof?
Responses
A -50 ft-50 ft
B -24 ft-24 ft
C 24 ft24 ft
D 40 ft40 ft
E 50 ft

Answer 2

The equation that has solution x = -3 is:
A) 2x - 7 = -12x - 7 = -1

Answer 3

The distance from the basement floor to the roof can be found by subtracting the elevation of the basement floor from the elevation of the roof.

Roof elevation - Basement elevation = Distance

Using the given elevations:
36 ft - (-14 ft) = Distance
36 ft + 14 ft = Distance
50 ft = Distance

Therefore, the distance from the basement floor to the roof is 50 ft.

The correct answer is:
E) 50 ft