Question

a sailfish can swim up to 1 mile per hour less than one fifth the top speed of a peregrine falcon. Find the top speed that a sailfish can swim?

Answer 1

Answer: The top speed that a sailfish can swim at
`((x)/(5)-1)\ mph`

Explanation:

Since we have given that

Top speed of a peregrine falcon be 'x'.

One fifth the top speed of a peregrine falcon would be

`(1)/(5)x`

1 mile per hour less than the above is expressed as

`(1)/(5)x-1`

According to question, the top speed that a sailfish can swim would be

`(1)/(5)x-1`

Hence, the top speed that a sailfish can swim at
`((x)/(5)-1)\ mph`

Answer 2

top speed of a peregrine falcon is 240 miles per hour

240 x 1/5 = 48

48-1 = 47

sailfish can swim 47 miles per hour