Let's represent the number of pages Nora used for science as "x".
According to the second condition, she used 21 more pages for math than for science, so the number of pages she used for math is x + 21.
According to the third condition, she used 14 more pages for language than for science, so the number of pages she used for language is x + 14.
Since she used 78 pages for math, we can set up an equation:
x + 21 = 78
Now we can solve for x:
x = 78 - 21
x = 57
Therefore, Nora used 57 pages for science.
To find how many pages Nora used for language, we substitute this value of x into the expression we found: x + 14
57 + 14 = 71
Thus, Nora used 71 pages for language. Answer: \boxed{71}.
Nora used a spiral notebook to take notes in three classes.
• She used 78 pages for math.
• She used 21 more pages for math than for science.
• She used 14 more pages for language than for science.
How many pages of the notebook did Nora use for language?
1 answer
1 answer