Question

please solve full paper I will mark you brainlist​

Answer 1

Step-by-step explanation:

1.1 x: 50 :: 3 : 2

= X/50 = 3/2

= 2x = 150

= X = 150/2

= X= 75 ( answer )

1.2 p= 400

n= 2 year

A= 441

A= p ( 1+r/100) ^n

441= 400 (1+ r/100) ^2

441/400 = (1+ r/100) ^ 2

(21/20) ^2 = (1+r/100 ) ^ 2

(^2 cut on both side)

21/20 -1 = r/100

1/20 = r/100

20r = 100

r = 100/20

r = 5 % ( answer)

1.4 x= 3+2√2

1/x = 1×(3-2√2) /(3+2√2)(3-2√2)

1/x = 3-2√2

X+1/x = (3+2√2)+(3-2√2)

3+2√2 +3-2√2

( 2√2 cut on both side )

=3+3 = 6 ( Answer)

2. X:y = 3:4

X/Y = 3/4

(3y-x) / ( 2x+y)

(3×4-3)/(2×3+4)

(12-3)/(6+4)

9/10 ( answer)