Question

Plz answer all the questions . If you will give correct answers with explanation , I will mark you as a Brainlist .​

Answer 1

Answer:

Step-by-step explanation:

a)

ab = -2/5

a = -1/8 b = x

-1/8*x = -2/5

-x/8 = -2/5

x = -2/5*(-8)

x = 16/5

proof :-

-1/8 * 16/5 = -16/40

                = -2/5

b)

same as (a)

ab = -8/9

and a is given as -4/15

-4/15b = -8/9

b = -8/9*(-15/4)

b = 10/3

proof:-

-4/15*(10/3) = -40/45 = -8/5

c)

mul inverse of -9/13 = -13/9

aditive inverse of 5/6 = -5/6

-13/9+(-5/6 ) = -41/18

d)

a+b = -6

a = -23/5

-23/5 + b = -6

b = 6+(-23/5)

b = 7/5