Do only question number 3 4 6 8 in the above math
Answers
Q.3rd I can't solve on this page beacause I need notebook ....
Q.4
Denominator same
-9/30,-42/-30,18/-30,18/30
Now
we know that negative no. is less than positive no.
Negatives are -9/30,-18/30
positives are 18/30,-42/-30(negative negative is equals to possitive)therefore, (-42/-30)= 42/30
Biggest no is 42/30
2nd biggest is 18/30
3rd is -9/30
4th is -18/30
therefore,
Descending form is 42/30,18/30,-9/30,-18/30
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Q.6
I.(23/x)=(2/-8)
by cross multiplication
23×-8=2x
-184=2x
x=-184÷2
= -92
x=-92
ii.x/9=19/3
by same method
3x=19×9
3x=171
x=171÷3
= 57
x=57
iii.15/-x=1/-7
by same method
-x = -105
here negative negative is equals to possitive
therefore,
x= 105
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Q.8
I.3/5=138/□
138÷3=46
therefore, 5×46=230
□=230
ii.7/9=□/108
108 ÷ 9= 12
therefore, 7×12=84
□=84
iii.□/-15=48/90
90÷-15=-6
therefore, 48÷-6=-8
iv.121/□=-11/12
121÷-11=-11
therefore, 12×-11=-132
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