Math Problem Statement

Find the measure of each marked angle. The two given angles are expressed as (15x + 2)° and (10x + 3)°.

Solution

The image shows a problem where two angles are given in terms of algebraic expressions. The problem asks to find the measure of each marked angle, where the two expressions for the angles are:

  • (15x+2)(15x + 2)^\circ
  • (10x+3)(10x + 3)^\circ

These two angles seem to form a linear pair, which means they are supplementary (i.e., they add up to 180180^\circ).

Step-by-step solution:

Since the angles are supplementary, we can set up the equation:

(15x+2)+(10x+3)=180(15x + 2) + (10x + 3) = 180

Now, simplify the equation:

15x+10x+2+3=18015x + 10x + 2 + 3 = 180

25x+5=18025x + 5 = 180

Next, subtract 5 from both sides:

25x=17525x = 175

Now, divide both sides by 25:

x=7x = 7

Finding the angles:

  1. For the larger angle: 15x+215x + 2: 15(7)+2=105+2=10715(7) + 2 = 105 + 2 = 107^\circ

  2. For the smaller angle: 10x+310x + 3: 10(7)+3=70+3=7310(7) + 3 = 70 + 3 = 73^\circ

Thus, the measures of the angles are:

  • The larger angle measures 107107^\circ.
  • The smaller angle measures 7373^\circ.

Would you like more details on this, or do you have any questions?

Here are 5 related questions for practice:

  1. What are supplementary angles?
  2. What are complementary angles, and how are they different from supplementary angles?
  3. How do you find the value of a variable when given the sum of angles?
  4. Can angles that are not on a straight line be supplementary?
  5. How would the equation change if the angles were complementary instead of supplementary?

Tip: Always double-check whether the angles are complementary (add to 90°) or supplementary (add to 180°) when solving for unknown variables.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Supplementary Angles

Formulas

(15x + 2) + (10x + 3) = 180

Theorems

Angles in a linear pair are supplementary

Suitable Grade Level

Grades 8-10