Question

C. 3 m : 15 cm and 120 seconds : 4 minutes are they in proportion​

Answer 1

Answer:

no

Step-by-step explanation:

3m= 300cm( because 1m= 100 cm)

4minutes=240second( because 1minute= 60 second

Answer 2

Answer:

3m : 15 cm are in proportional format 20:1

120 seconds : 4 minutes are in proportional format 1:2

Step-by-step explanation:

3m=3×100 cm=300 cm

then 300 cm : 15 cm = 20:1

4 minutes = 4×60 seconds=240 seconds

Then 120:240 seconds = 1:2