X is the unknown value of the variable x. X = 4 means that that value is given to you and the value of x is 4. You are supposed to substitute x in for 4 in that equation.
Answer:
I would say A. 7.8 x 10^-5
Step-by-step explanation:
7.8 x 10^-5 can also be written as 7.8 times 10 to the negative fifth power or the exponent of negative five. But, if you solve it you would get 0.000078 as the real number.
Answer:
Step-by-step explanation:
-3x<-20-5
-3x<-25
x>25/3
Answer:
63 degrees.
Step-by-step explanation:
Vertical angles are congruent.
60(x)=g
60 represents the price of a new game
x represents the amount of games
g represents the amount sold