Question
(a) The sum of two integers is 94. If one of them is -25, find the other?
(b) The sum of two integers is -320. If one of them is +80, find the other?
(c) The sum of two integers is 100. If one of them is -50, find the other?
(d) The sum of two integers is -660. If one of them is -70, find the other? [4 MARKS]
(b) The sum of two integers is -320. If one of them is +80, find the other?
(c) The sum of two integers is 100. If one of them is -50, find the other?
(d) The sum of two integers is -660. If one of them is -70, find the other? [4 MARKS]
Answer:
:
Each option: 1 Mark
(a). Let the integer be x⇒−25+x=94⇒x=94+25⇒x=119
(b). Let the integer be x⇒80+x=−320⇒x=−320−80⇒x=−400
(c). Let the integer be x⇒−50+x=100⇒x=100+50⇒x=150
(d). Let the integer be x⇒−70+x=−660⇒x=−660+70⇒x=−590
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:
Each option: 1 Mark
(a). Let the integer be x⇒−25+x=94⇒x=94+25⇒x=119
(b). Let the integer be x⇒80+x=−320⇒x=−320−80⇒x=−400
(c). Let the integer be x⇒−50+x=100⇒x=100+50⇒x=150
(d). Let the integer be x⇒−70+x=−660⇒x=−660+70⇒x=−590
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