Answer: I think the answer would be 4+2n=60.. might be wrong though
Step-by-step explanation:
Hi!
So, to "half" a number, you multiply it by 1/2 or 0.5
"A number" is a number which we don't know the value of, so we could use a variable. Any letter you want is fine, but let's use x
"Decrease by 12" This simply means to subtract 12, so - 12
So, now we have:
1/2x - 12
1/3, 0,1,-2.....neither geometric or arithmetic
Answer:
A) {-1,2}
Step-by-step explanation:
square both side of the equation. Then:
x+2=x^2
simplify:
x^2-x-2=0
factor:
(x+1)(x-2)=0
then:
x=-1, x=2
The answer is “122“ 180-58 = 122