Question

Dado la proporcion a/2=c/3, Hallar ¨a´´ si a+c=45

Answer 1

a/2 = c/3
3a = 2c
3a/2 = c

a + c = 45
a + 3a/2 = 45
5a = 90
a = 18

3a/2 = c
3(18)/2 = c
27 = c