Respuesta :

JonHenderson55
 The answer is:  "135 minutes" ; or,  write as:  "2 hr. and 15 minutes" .
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Explanation:
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4/18 = 30/ x ?  Solve for "x" (time in minutes).

4/18 = (4÷2) / (18÷2) = 2/9 .

 2/9 = 30/ x ;

2x = (9)(30) ;

2x = 270 ; 

Divide EACH side of the equation by "2" ;

2x / 2 = 270 / 2 ;

to get:

x = 135 minutes ; or,

since 60 minutes = 1 hr.

60 minutes * 2 = 120 minutes = 2 hr.

135 minutes  −  120 minutes = 15 minutes.
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 The answer is:  "135 minutes" ; or, "2 hr. and 15 minutes" .
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The division is one of the four fundamental arithmetic operations. The time it will take for Mike to read 30 pages is 6.6667 minutes.

What is Division?

The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.

Given that It takes Mike 18 minutes to finish reading 4 pages of a book. Therefore, the rate at which Mike read a book is,

Rate of reading = 4 pages/18 minutes = 4/18 page per minute

Now, the time it will take for Mike to read 30 pages is,

Time = 30 × 4/18 minutes

         = 6.6667 minutes

Hence, it will take 6.6667 minutes for mike to read 30 pages.

Learn more about Division:

https://brainly.com/question/369266

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