The number of pages read varies directly as the number of minutes. If you can read 20 pages and 45 minutes, how many pages can you read in 18 minutes?

Respuesta :

Answer:

8 pages

Step-by-step explanation:

Write and solve an equation of ratios:

20 pages           x

--------------- = -------------

45 min          18 min

Cross multiplying, we get (18 min)(20 pages) = (45 min)x.

Then x = (18)(20)/(45) pages = 360/45 pages = 8 pages


Lanuel

The number of pages that you can read in 18 minutes is equal to 8 pages.

Given the following data:

  • Number of pages A = 20 pages
  • Time A= 45 minutes
  • Time B =  18 minutes

To determine how many pages you can read in 18 minutes, we would apply direct proportion:

By using direct proportion:

20 pages = 45 minutes

X pages = 18 minutes

Cross-multiplying, we have:

[tex]45X = 18 \times 20\\\\45X = 360\\\\X = \frac{360}{45}[/tex]

X = 8 pages

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