If a/b = c/d, which of the following is not true? 1) ad=bc
2) a/c=b/d
3) a+b/b=c+d/d
4) a/d=c/b
5) b/a=d/c

Option 4 is not true

Step-by-step explanation:

1)Cross multiply,

ad = bc

So, true

2) a/ c = b/d also true

3) a+b/b = c+d/d  also true

For example:

When simplifying 10/8, it is 5/4.

5) b/a = d/c is also true

15 batches are the most you can make

step-by-step explanation:

c) the median for town a 30" is greater than the median for town b 25"

step-by-step explanation:

town a, median = q2 = 30

town b, median - q2 = 25

so the median for town a 30" is greater than the median for town b 25"