$2.76/18 • $2.07/x cross multiply these proportions $2.76•x = $2.76x. $2.07•18= $37.26 then divide by 2.76 on both sides $2.76/$2.76 that cancels out and you get x $37.26/$2.76= 13.5 so that means x= 13.5 your answer is 13.5
Answer:
a quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression
Step-by-step explanation:
A tip would be to watch a video on exponents and pemdas, they can be really helpful!
Hope this helps!
Answer:
n = 30
Step-by-step explanation:
you want to isolate the n and get it by itself. So you would do the inverse operation. On the other side, you do the same thing.
20
Because I used this website called http://www.alcula.com/calculators/statistics/variance/
Hope this helped :)
