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 $(\dfrac{x}{5}-1)\ mph$

Step-by-step 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

$\dfrac{1}{5}x$

1 mile per hour less than the above is expressed as

$\dfrac{1}{5}x-1$

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

$\dfrac{1}{5}x-1$

Hence, the top speed that a sailfish can swim at $(\dfrac{x}{5}-1)\ mph$

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