Solving a Problem Where the Larger Supplementary Angle is 18 Degrees Less Than Twice the Smaller
To calculate the measures of two supplementary angles when the larger is degrees less than twice the smaller, frame the problem as a system of equations suitable for substitution. Use for the smaller angle and for the larger. The supplementary relation yields . The comparative phrase translates to . Substituting into the first equation results in . Combine like terms to form , add to obtain , and divide by to find . Replace in the second equation: . The angle measures are and .
0
1
Tags
OpenStax
Intermediate Algebra @ OpenStax
Ch.4 Systems of Linear Equations - Intermediate Algebra @ OpenStax
Algebra
Related
An HVAC technician is measuring two supplementary angles, x and y, at a ductwork junction. To find the measure of each angle using a system of equations, which equation must the technician use to represent the fundamental geometric relationship between these two angles?
An engineering assistant is calculating the stress points on a frame where two beams meet at supplementary angles. To find the exact measures of both angles using a system of equations, the assistant follows a standard problem-solving strategy. Place the following steps of that strategy in the correct sequence from start to finish.
A technician is solving for two supplementary angles using the substitution method with the equations x + y = 180 and y = 5x - 12. To perform the substitution, the expression '5x - 12' must be used as a replacement for the variable ____ in the first equation.
A solar panel installation specialist is designing a mounting bracket where two beams meet to form supplementary angles, x and y. According to the blueprints, the measure of the larger angle (y) must be twelve degrees less than five times the measure of the smaller angle (x). Match each verbal description from the installation plan with its correct algebraic representation used in the system of equations.
Selecting the Substitution Method
Structural Joint Specifications
A mechanical technician is using the substitution method to determine two supplementary angles, and , for a machine calibration. Given the system of equations and , True or False: The technician can proceed directly to substituting the expression for into the first equation because the second equation is already solved for in terms of .
Procedural Accuracy in Robotic Arm Calibration
A civil engineering technician is calculating the alignment of two supplementary drainage pipes using a system of equations. According to the standard problem-solving strategy, which equation format makes the substitution method the most 'convenient' choice for solving the system?
A quality control technician has solved a system of equations to find two supplementary angles for a structural joint. The calculations resulted in a smaller angle of 32° and a larger angle of 148°. According to the 'Check' step (Step 6) of the problem-solving strategy, which calculation correctly verifies the specific requirement that 'the larger angle is twelve degrees less than five times the smaller angle'?
Solving a Problem Where the Larger Supplementary Angle is 12 Degrees More Than Three Times the Smaller
Solving a Problem Where the Larger Supplementary Angle is 18 Degrees Less Than Twice the Smaller