Bentuk bentuk berikut merupakan perbandingan senilai. hitunglah nilai x dan y! a. 24 : (x +7) = 16 : 10 b. 8 : 10 =( y + 15 ) : 25

A.
24 : (x + 7) = 16 : 10
24 / (x + 7) = 16 / 10
24 (10) = 16 (x + 7)
240 = 16x + 112
16x = 240 - 112
16x = 128
x = 128/16
x = 8

B.
8 : 10 = (y + 15) : 25
8 / 10 = (y + 15) / 25
8 (25) = (y + 15) 10
200 = 10y + 150
10y = 200 - 150
10y = 50
y = 50/10
y = 5

a. 24/(x + 7) = 16/10
16(x + 7) = 24(10)
16x + 112 = 240
16x = 240 - 112
16x = 128
x = 128/16
x = 8

b. 8/10 = (y + 15)/25
10(y + 15) = 8(25)
10y + 150 = 200
10y = 200 - 150
10y = 50
y = 50/10
y = 5

jdi nilai x = 8, y = 5