Question

Do only question number 3 4 6 8 in the above math​

Answer 1

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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