Name: Pre-Algebra 29 - Roots and Unit Fraction Exponents @MyWhyU
Uploaded: 2011-10-07T01:29:31-0400
Duration: 8 min 17 s
Description: Exponents can not only be integers. They can also be fractions. Using the rules of exponents, we can see why a number raised to the power one over n is equivalent to the nth root of that number.

Algebra 49 - Three Variable Systems in the Real World - Problem 1 @MyWhyU

Uploaded December 2015 | Updated September 2026, 2 weeks ago

Algebra 49, 50 and 51 present three real-world problems which can be solved using systems of three linear equations in three variables. This chapter shows how prices of three individual items can be determined, given three combinations of quantities of each item and each combination's total cost.

Algebra 49 - Three Variable Systems in the Real World - Problem 1

$Pre-Algebra 29 - Roots and Unit Fraction Exponents Exponents can not only be integers. They can also be fractions. Using the rules of exponents, we can see why a number raised to the power one over n is equivalent to the nth root of that number.$