Respuesta :

mathstudent55

Answer:

n = 12

Step-by-step explanation:

I assume in problem 4 the relation between miles and hours is proportional.

Set up a proportion.

45 miles is to 4 hours as 135 miles is to n hours.

45/4 = 135/n

Cross multiply.

45n = 4 × 135

n = 4 × 3

n  = 12

sweetsprinkles1

Answer:

12

Step-by-step explanation:

Because we can divide 45 and 4 and we get 11.25

Now we know that one hour is 11.25 miles. So just divide 135/11.25

and you get 12

im pretty sure thats the correct answer. Hope this helps

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