Answer:
See below ~
Step-by-step explanation:
<u>P (6th grader)</u>
- No. of 6th graders / Total students
- 6 / 6 + 7 + 8
- 6/21
- 2/7
<u>P (6th grader after)</u>
- No. of 6th graders - 1 / Total students - 1
- 6 - 1 / 21 - 1
- 5/20
- 1/4
<u>Question 1 : P (Both 6th graders)</u>
- P = P (6th grader) × P (6th grader after)
- P = 2/7 x 1/4 = 2/28 = <u>1/14</u>
<u></u>
<u>Question 2 : P' (Both 6th graders)</u>
- P' = 1 - P
- P' = 1 - 1/14
- P' = <u>13/14</u>
Answer:
27.
Step-by-step explanation:
54 = 2 * 3 * 3 * 3.
3 occurs 3 times so the perfect cube is 27.
<span><span><span>6+<span>14r</span></span>−<span>12r</span></span>+3
</span><span>=<span><span><span><span>6+<span>14r</span></span>+</span>−<span>12r</span></span>+3
</span></span>Combine Like Terms:
<span>=<span><span><span>6+<span>14r</span></span>+<span>−<span>12r</span></span></span>+3
</span></span><span>=<span><span>(<span><span>14r</span>+<span>−<span>12r</span></span></span>)</span>+<span>(<span>6+3</span>)
Your answer would be:
</span></span></span><span><span><span>
2r</span>+<span>9
~Good Luck~</span></span></span>
= 6.