Let's set up a proportion to solve for BC:AC/AB = BC/(BC + 1)9/7 = BC/(BC + 1)
Cross multiply:9(BC + 1) = 7BC9BC + 9 = 7BC
Now, we can solve for BC:9BC - 7BC = 92BC = 9BC = 9/2BC = 4.5
Therefore, the value of BC is 4.5.
Let's set up a proportion to solve for BC:
AC/AB = BC/(BC + 1)
9/7 = BC/(BC + 1)
Cross multiply:
9(BC + 1) = 7BC
9BC + 9 = 7BC
Now, we can solve for BC:
9BC - 7BC = 9
2BC = 9
BC = 9/2
BC = 4.5
Therefore, the value of BC is 4.5.