Question

two number are the ratio 4:5 if the 5 is added to each number the ratio become 13:16 find the other number​

Answer 1

Answer:

Step-by-step explanation:

x:y = 4:5     =    5x=4y    =  x=4y/5

x+5:y+5 = 13:16

4y+5:y+5 = 13:16

16(4y+5) = 13(y+5)

64y+80 = 13y+65

64y-13y = 65-80

51y = -15

y = -15/51 = -0.3

x = 4(-0.3)/5 = -1.2 / 5 = -0.24

Therefore, x=-0.24 ; y=-0.3