4:5 means that 52/4= 13 and 13 x 5=65 so there are 65 female employees so when you add 52+65=117
so 117 employees
The mathematical property that allows 40 * (25 * 74) = (40 * 25) * 74 would be the Associative Property of Addition and Multiplication. This property means that no matter how the values of an expression are grouped together (or "associating" with each other), the end result will be the same, as long as the symbols are all either multiplication or addition symbols.
Hope that helped =)
<span>2(6ti-t3j+2t3k)dt 0= 2(6(1/2)t2i-1/4t4j+2(1/4)t4k)0
=6(1/2)(0)2i-1/4(0)4j+2(1/4)(0)4k-6(1/2)(2)2i-1/4(2)4j+2(1/4)(2)4k
=-12i+4j-8k</span>
The answer is 5. I hope that helps.
