Mathematics
25.04.2022 17:08
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Can we say ((-16)÷4) ÷ (-2) is the same as (-16)÷ (4÷(-2)?
Can we say ((-16)÷4) ÷ (-2) is the same as (-16)÷ (4÷(-2)?
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studentstudies9816
4,7(44 marks)
![\longrightarrow{\blue{ [( - 16)\div 4) \div ( - 2)] \:is\:not\:equal\:to\:( - 16) \div [4 \div( - 2) ] }}](/tpl/images/2413/3629/e7036.png)
![[( - 16 )\div 4) \div ( - 2)] = ( - 16) \div [4 \div( - 2) ]](/tpl/images/2413/3629/9bff4.png)
Let us first solve for L. H. S.
![= [( - 16 )\div 4) \div ( - 2)]](/tpl/images/2413/3629/bf6c8.png)
![= [ (\frac{ - 16}{4} )\div ( - 2)]](/tpl/images/2413/3629/54b00.png)
Now, R. H S.
![( - 16) \div [4 \div ( - 2)]](/tpl/images/2413/3629/a7d33.png)
L. H. S. ≠ R. H. S.
Hence, ![[( - 16) \div 4) \div( - 2)] ≠(-16)\div [4 \div( - 2) ]](/tpl/images/2413/3629/c7ed4.png)
sama4awad
4,9(67 marks)
Let greater no. Is x
and smaller no.is y
so x-y=1
And x+y=19
Eliminating both eq.we get2x=20
x=10
So 10-y=1
so y=10-1
y=9
One no. is x=10
And other no.is y=9
and smaller no.is y
so x-y=1
And x+y=19
Eliminating both eq.we get2x=20
x=10
So 10-y=1
so y=10-1
y=9
One no. is x=10
And other no.is y=9
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