Tiffany: x/3 books
Brother: (4/9)x - 15 books
Sister: x/3 - x/9
Total: x/3 + (4/9)x - 15 + x/3 - x/9
The LCD here is 9. Mult. all terms by 9 and simplify the resulting expression:
3x + 4x - 135 + 3x - x = 7x + 3x - x - 135 = 9x - 135 books (answer)
Exact form: 27/4
decimal form: 6.75
mixed number: 6(3/4)

- Given - <u>two </u><u>points </u><u>P </u><u>(</u><u> </u><u>5</u><u> </u><u>,</u><u> </u><u>1</u><u>0</u><u> </u><u>)</u><u> </u><u>and </u><u>R </u><u>(</u><u> </u><u>1</u><u>2</u><u> </u><u>,</u><u> </u><u>1</u><u>4</u><u> </u><u>)</u><u> </u><u>on </u><u>the </u><u>c</u><u>artesian </u><u>plane</u>
- To find - <u>distance </u><u>between </u><u>the </u><u>two </u><u>points</u>
<u>Using </u><u>the </u><u>distance </u><u>formula</u> ~

we have ,

<u>substituting</u><u> </u><u>the </u><u>values </u><u>in </u><u>the </u><u>formula </u><u>,</u><u> </u><u>we </u><u>get</u>

hope helpful :)
Answer:
I hope it helped u.
Step-by-step explanation: