What Is The Value Of M 10 30 70 150

whatis the value of m 10 30 70 150 When faced with a string of numbers like 10, 30, 70, 150 and asked to find the next term m, the first instinct is to look for a hidden rule that connects each term to the one before it. This article walks you through a step‑by‑step process to uncover that rule, derive a formula, and confidently state the value of m. Whether you are a student preparing for an exam, a teacher designing a worksheet, or simply a curious learner, the explanation below will give you both the procedural know‑how and the intuition behind pattern recognition in number sequences.

Introduction: Why Finding m Matters

Number sequences appear everywhere—from the Fibonacci spirals in sunflowers to the compound interest formulas used in finance. Being able to spot the underlying pattern lets you predict future values, solve real‑world problems, and develop logical thinking skills. In the specific case of what is the value of m 10 30 70 150, the goal is to determine the fifth term (m) that continues the given list. By the end of this article you will not only know that m = 310, but you will also understand why that is the correct answer.

Understanding the Given Sequence

The four known terms are:

At first glance the jumps between successive terms are not uniform:

• 30 − 10 = 20
• 70 − 30 = 40 - 150 − 70 = 80

Each difference doubles the previous one (20 → 40 → 80). This observation hints at a multiplicative component combined with an additive constant.

Identifying the Pattern

Step 1: Look for a Recursive Relationship

A recursive formula expresses each term as a function of the preceding term. Testing the hypothesis “each term equals the previous term multiplied by a fixed number, then plus a constant”:

Assume
[ a_{n}=k \cdot a_{n-1}+c ]

Plug in the first two known pairs to solve for k and c:

1. For n = 2: 30 = k·10 + c
2. For n = 3: 70 = k

Step 2: Solve for the Multiplier and Constant

Using the two equations:

1. (30 = 10k + c)
2. (70 = 30k + c)
   Subtract the first from the second:
   (70 - 30 = (30k + c) - (10k + c))
   (40 = 20k)
   (k = 2).

Substitute (k = 2) into the first equation:
(30 = 10(2) + c)
(30 = 20 + c)
(c = 10).

The recursive formula is:
[a_n = 2 \cdot a_{n-1} + 10]

Step 3: Verify the Formula

• For (n=3): (a_3 = 2 \cdot 30 + 10 = 70) ✓
• For (n=4): (a_4 = 2 \cdot 70 + 10 = 150) ✓

The formula holds for all given terms.

Step 4: Calculate the Next Term ((m))

For (n=5):
[a_5 = 2 \cdot 150 + 10 = 300 + 10 = 310]
Thus, (m = 310).

Alternative Approach: Closed-Form Formula

The recursive relation (a_n = 2a_{n-1} + 10) is a linear nonhomogeneous recurrence. Its solution combines:

• Homogeneous solution: (a_n^{(h)} = A \cdot 2^n)
• Particular solution: Assume constant (C). Then (C = 2C + 10 \Rightarrow C = -10).
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