Question

please help me with full explanation Q8 and Q12​

Answer 1

Answer:

I hope answer is helpful to us

sorry dear Q.8 nhi aata

Answer 2

Explanation:

the the present age of Ram BX and the present age of Rahman be Y respectively.

from first condition

8 x + 9 y =5-----1

from second condition

9 X + 10 y =1-------2

multiply equation 1 by 10

multiply equation 1 by 9

80x +90 y = 50--------3

81 x + 90 y = 9---------4

subtracting question 3 and 4

80 x + 90 y = 50

81 X + 90 y=9

1 X + = 41

x=41/1

re substituting equation 41/1 in equation in one

8 x + 9 y=5

8 (41/1) +9 y=5

328+9 y=5

328-5=-9y

323=-9y

323/-9=y

y=35.888888888888

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