x=-2/5, y=4/3, z=-7/10 by associative addition of rational number
Answers
Step-by-step explanation:
In order to verify this property, let us consider the following expressions: Verification: 12+[23+(−15)]=12+[1015−315]12+[23+(−15)]=12+[1015−315] = 12+71512+715 = 15+143015+1430 = 29302930 And, (12+23)+(−15)=(36+46)−15(12+23)+(−15)=(36+46)−15 = 76−1576−15 = 35−63035−630 = 29302930 Therefore, The associative property of additional of rational numbers has been verified (ii) In order to verify this property, let us consider the following expressions: Verification: −25+[43+(−710)]=−25+[4030−2130]−25+[43+(−710)]=−25+[4030−2130] = −1230+1930−1230+1930 = −12+1930−12+1930 = 730730 And, (−25+43)+(−710)=(−615+2015)−710(−25+43)+(−710)=(−615+2015)−710 = 1415−7101415−710 = 28−213028−2130 = 730730 Therefore, The associative property of additional of rational numbers has been verified (iii) In order to verify this property, let us consider the following expressions: Verification: −711+[2−5+(−322)]=−711+[44−110−15110]−711+[2−5+(−322)]=−711+[44−110−15110]: = −711−29110−711−29110 = −70−29110−70−29110 = −99110−99110 And, (−711+2−5)+(−322)(−711+2−5)+(−322) =(−3555−2235)−322=(−3555−2235)−322 = −5755−322−5755−322 = −114+15110−114+15110 = −99110Read more on Sarthaks.com - https://www.sarthaks.com/1056770/verify-associativity-of-addition-of-rational-numbers-i-e-x-y-z-x-y-z-when-i-x-1-2-y-2-3-z-1-5