SOLUTION: Solve, show property used(associative, communative, and distributive)and show all steps. 15.) (45•32)•0 17.) 50•(118•20) 19.) (25•78)•4

Algebra ->  Distributive-associative-commutative-properties -> SOLUTION: Solve, show property used(associative, communative, and distributive)and show all steps. 15.) (45•32)•0 17.) 50•(118•20) 19.) (25•78)•4      Log On


   

Question 56687This question is from textbook Algebra 1
: Solve, show property used(associative, communative, and distributive)and show all steps.
15.) (45•32)•0
17.) 50•(118•20)
19.) (25•78)•4 This question is from textbook Algebra 1

Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Solve, show property used(associative, communative, and distributive)and show all steps.
15.) (45•32)•0
45*(32*0) Associative Property of Multiplication
45*(0) Zero product property
0 Zero product property
:
17.) 50•(118•20)
50*(20*118) Commutative of multiplication
(50*20)*118 Associative of multiplication
(1000)*118
118,000

19.) (25•78)•4
(78*25)*4 commutative property of multiplication
78*(25*4) associative property of multiplication
78*(100)
7,800
:
Notice these properties made these problems easier and fun to do, rather than a chore. No calculator or scratch paper is needed.
Happy Calculating!!!