Question

Suppose that a rainbow fish can swim 60 feet in 6 seconds. An angelfish can swim 45

feet in 2 seconds.
Which fish can swim faster and by how much?
The angelfish swims 4.5 feet per second faster.
The angelfish swims 12.5 feet per second faster.
The rainbow fish swims 4.5 feet per second faster.
The rainbow fish swims 12.5 feet per second faster.

Answer 1

The angle fish swims 12.5 feet per second faster.

First get the speed of the two fishes

Speed = distance/time

The rainbow fish can swim 60 feet in 6 secs

Speed = distance/time

= 60/6 = 10 feet per second

An angle fish can swim 45feet in 2 secs

Speed = 45/2

= 22.5 feet per second

Therefore, the angle fish swims faster .

Now subtract the speed of rainbow fish from that of the angle fish to get the speed with which it swims faster

22.5 - 10 = 12.5feet per second

Answer 2

The angle fish swims 12.5 feet per second faster.

Explanation:

First get the speed of the two fishes

Speed = distance/time

The rainbow fish can swim 60 feet in 6 secs

Speed = distance/time

= 60/6 = 10 feet per second

An angle fish can swim 45feet in 2 secs

Speed = 45/2

= 22.5 feet per second

Therefore, the angle fish swims faster .

Now subtract the speed of rainbow fish from that of the angle fish to get the speed with which it swims faster

22.5 - 10 = 12.5feet per second