lalajade142 lalajade142
  • 23-05-2021
  • Mathematics
contestada

Daniel has read 70% of a book. He has 21 more pages to finish. How many pages were there in the book?

Respuesta :

aklee18oo
aklee18oo aklee18oo
  • 23-05-2021

Answer:

70 pages

Step-by-step explanation:

Since Daniel has read 70% of the book he has 100% - 70% or 30% of the book left to read. This 30% is 21 pages. We can write this equation, where x is the number of pages in the book:

0.3x = 21

(0.3 is equivalent to 30%)

We divide by 0.3 on both sides of the equation to get:

x = 70 pages

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