The sum of two numbers is 20. One number is three times as large as the second
number. What are the two numbers?
Which let statement would you use?
Let x be the smaller number, and let 3x be the larger.

Let x be the smaller number, and let x + 3 be the larger.

Let x be the smaller number, and let 20x be the larger.

The two numbers are 5 and 15 :D. The statement I would use is: Let x be the smaller number, and let 3x be the larger.

Step-by-step explanation:

If I helped, please mark brainliest !

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: