Karmen purchased eight cookies and three chocolates for a total of $11.35. Marcus purchased three cookies and five chocolates for a total of $6.00. What is the price of one cookie and the price of one chocolate?

cookie $1.25

chocolate $0.45

Step-by-step explanation:

x=cookie y=chocolate

8x+3y=11.35

3x+5y=6

40x+15y=56.75

9x+15y=18

40x-9x=56.75-18

x=1.25

y=0.45

i can

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: