A bag contains green marbles and blue marbles, 44 in total. The number of green marbles is 5 more than 2 times the number of blue marbles. How many green marbles are there?

31 green marbles.

Step-by-step explanation:

Let G = # of green marbles.

Let B = # of blue marbles.

G + B = 44

G = 5 + 2*B

Solve by substitution

(5  + 2*B ) + B = 44

5 + 3B = 44

3B = 39

B = 13

so  G = 31 green marbles

i have no clue at all sorry

step-by-step explanation:

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: