Question

Fill in the blanks:
a) Ratio of 20 min to 2 hrs
(b) 13, 39, 7,--------
are in proportion.​

Answer 1

Answer:

a)1:6

b)21

Step-by-step explanation:

hope it helps

Answer 2

Answer:

1. 2 hours=120 minutes

20:120=1:6.

2. 13:39=7:x

1:3=7:x

1:3=7:21

1:3=1:3

so the answer is 7:21.