Respuesta :

Answer:

810 minutes

Step-by-step explanation:

90÷5=18

18×45=810

It will take him 810 mins.

I hope this helped!!

Answer:

810 minutes

13 hours 30 minutes

Step-by-step explanation:

Let the unknown value be x

[tex]5\:miles = 45 \: minutes\\90\:miles = x\:minutes[/tex]

Sole the proportion for x ; Cross Multiply

[tex]5\times \:x =90 \times 45\\\\5x\: = 4050[/tex]

Divide both sides of the equation by 5

[tex]\frac{5x}{5} = \frac{4050}{5} \\\\x = 810 \:minutes =\\13 \:hours \:30\:minutes[/tex]