Question

if x:y=3:5.find ratio of 3x+4y:8x+5y

Answer 1

Let x=3a and y=5a
Since given 3x+4y:8x+5y
3*3a+4*5a:8*3a+5*5a
=9a+20a:24a+25a
=29a:49a
=29:49[a/a=1]

Answer 2

Answer:

Step-by-step explanation:

x:y = 3:5 = 3k : 5k

3(3k) + 4(5k) : 8(3k) + 5(5k)

  9k + 20k

-------------------  = 29k/49k= 49/29

   24k + 25k

(there is a multiplication symbol between the bracet and the number)

Eg- 2(34) = 2*34