Write and solve an equation that represents the following: a number decreased by 12 is 24.
x - 24 = 12; x = 36
x - 12 = 24; x = 36
24 - 12 = x; x = 12
x + 12 = 24; x = 12

x - 24 = 12; x = 36

Step-by-step explanation:

Sub in the 36 for the x in the first equation

36 - 24 = 12     Subtract the 36 and 24

12 = 12

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

the answer for this question is a= 13,622.84

step-by-step explanation: