If m∠DEF = (5x−8)°. Which equation would you use to find the value of x?
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Answer:
see attached
Step-by-step explanation:
The two different triangles can be formed by placing the 90° angle adjacent to, or opposite the given side.
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In the attached diagram, the two triangles are ABC and ABD. The right angles are at vertex C and vertex B, respectively.
We are trying to find the average speed of the plane, which is mph, or . Using proportions, we can find the average speed of the plane in mph:
- Use the information from the problem to create a proportion. Remember that we are looking for mph, so we will call that
.
- Multiply the entire equation by
- Divide both sides of the equation by
to clear both sides of the mile unit
The average speed of the plane is 300 mph.