Question

12/15=20/b what does b equal

Answer 1

25

Explanation:

12/15=20/b

cross multiply

12b=20*15

12b=300

b=300/12

b=25

Answer 2

b=25

Explanation:

12/15 = 20/b, b
`\\eq`0

4/5 = 20/b

4b = 100

b = 25, b
`\\eq` 0

b = 25