Question

Book b is twice as long as book a. book c is 30 pages longer then book b. together the three books have 280 pages.

I just need help with question number 10

It has to be solved algebraically Can someone please help me with this problem
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Answer 1

book c has 130 pages

Explanation:

let book a = x pages

book b = 2x

book c = 2x + 30

according to the question:

x + 2x +2x + 30 = 280

5x + 30 = 280

5x = 280-30

5x = 250

x = 250/5

x = 50

thus book c has 2(50) + 30 = 130 pages