Lesson Example Discussion Quiz: Class Homework |
Step-5 |
Title: The n^(th) term of the arithmetic progression |
Grade: 9-a Lesson: S4-L1 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Find the value of n,If \$ a = 5 , d = 10 ,a_n = 135 \$ |
|
2 |
Step |
The given values |
\$ a = 5 , d = 10 ,a_n = 135 \$ |
3 |
Formula: |
The Arithmetic Progression formula |
\$ a_n = a + (n-1)d\$ |
4 |
Hint |
Substitute \$a,d,a_n\$ values in formula |
\$ 135 = 5 + (n-1)10\$ |
5 |
Step |
After simplification we get |
\$135 = 5 + 10n - 10\$ |
6 |
Step |
After simplification we get |
\$ 135 = 10n - 5\$ |
7 |
Step |
After simplification we get |
\$ 10n = 135 + 5\$ |
8 |
Step |
After simplification we get |
\$ 10n = 140\$ |
9 |
Step |
After simplification we get |
\$ n = \cancel140^(14)/\cancel10^1\$ |
10 |
Step |
The value of n is |
14 |
11 |
Answer |
B |
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Tutor: Questions
| Seq | Type | Question | Audio |
|---|---|---|---|
1 |
Problem |
What did you learn from this problem? |
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2 |
Clue |
What did you learn from the clues? |
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3 |
Hint |
What did you learn from the Hints? |
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4 |
Step |
What did you learn from the Steps? |
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5 |
Step |
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