Derek wrote the equation s= 0.1t to show how much he was saving each month. the variable s equals the amount derek saves and t equals derek’s total income. which statement best states the of derek’s equation? a) derek saves 10% of his income each month. b) derek saves 90% of his income each month. c) derek saves 0.1% of his income each month. d) derek saves 1% of his savings each month.

A) Derek saves 10% of his income each month.

Step-by-step explanation:

Given : We have given the equation s= 0.1t, where t is Derek's monthly total income and s is the total savings of the month.

To find: We have to find the correct statement which states the monthly savings of Derek for a month.

Explanation: As we know s= 0.1 t.

0.1 t could be written as 10/100 t and 10/100 t could be read as 10 % of t that is 10% of the monthly total income.

Therefore correct option is:

A) Derek saves 10% of his income each month.

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:

depends on how many days you are talking about

step-by-step explanation: