(a). A place is 37m above sea level and another is 35 m below sea level. The difference in level between the two places is?
(b). The sum of two integers is (-15) and one of them is 8, the other integer is? [4 MARKS]

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Solution

Concept: 1 Mark each
Application: 1 Mark each

(a). $37 m$ above sea level $= + 37 m$
$35 m$ below sea level $= - 35 m$
The difference in level between two places is $= [+ 37 m - (- 35 m)] = + 37 m + 35 m = 72 m$

(b). Let the other integer be $x$ .
$\Rightarrow 8 + x = - 15, \Rightarrow x = [(- 15) - 8] = - 23$

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(a). A place is 37m above sea level and another is 35 m below sea level. The difference in level between the two places is? (b). The sum of two integers is (-15) and one of them is 8, the other integer is? [4 MARKS]

Concept: 1 Mark each Application: 1 Mark each (a). 37m above sea level =+37m 35m below sea level =−35m The difference in level between two places is =[+37m−(−35m)]=+37m+35m=72m (b). Let the other integer be x. ⇒8+x=−15,⇒x=[(−15)−8]=−23

(a). A place is 37m above sea level and another is 35 m below sea level. The difference in level between the two places is?
(b). The sum of two integers is (-15) and one of them is 8, the other integer is? [4 MARKS]