Math Problem Statement

The coordinate 8 has a weight of and the coordinate - 4 has a weight of . What is the weighted average?

A. 4

B. 4.4

C. 6.8

D. 44

Solution

To calculate the weighted average, we need to know both the coordinates and their corresponding weights. However, the problem is missing the weights for the coordinates 88 and 4-4. If you provide these weights, we can proceed with the calculation.

The general formula for the weighted average of two coordinates x1x_1 and x2x_2 with weights w1w_1 and w2w_2 is:

Weighted Average=x1w1+x2w2w1+w2\text{Weighted Average} = \frac{x_1 \cdot w_1 + x_2 \cdot w_2}{w_1 + w_2}

Please provide the missing weights so that I can help you further.

Would you like further clarification or more details on weighted averages?

Related questions:

  1. What is the formula for calculating a weighted average with more than two values?
  2. How does the value of weights affect the result of the weighted average?
  3. Can a weighted average be calculated when one weight is zero?
  4. What is the difference between a simple average and a weighted average?
  5. How can the concept of weighted averages be applied in real-life scenarios?

Tip: Always make sure all necessary values (like weights in this case) are provided in a problem to avoid confusion.

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Math Problem Analysis

Mathematical Concepts

Weighted Average
Arithmetic
Coordinate Geometry

Formulas

Weighted Average = (x1 * w1 + x2 * w2) / (w1 + w2)

Theorems

-

Suitable Grade Level

Grades 7-10