Question

please answer to this questions​

Answer 1

Step-by-step explanation:

(e) Sorry dont know

(f) Radius to diameter

= r : 2r

= 1 : 2

(g) x = 3

(h) 3x + 5y = 9 and 5x + 3y = 7

=> 15x + 25y = 45 and 15x + 9y = 21

On subtracting,

15x + 25y - 15x - 9y = 45 - 21

=> 16y = 24

=> y = 3/2

On putting y in any equation,

3x + 5(3/2) = 9

=> 3x + 15/2 = 18/2

=> x = 1/2

x + y = 1/2 + 3/2 = 2

HOPE IT HELPS.....

Sorry as i didnt know first part.