Answer: The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.
Step-by-step explanation:
Answer:
Step-by-step explanation:
20 Min=30% complete
40 min=60% complete
60 min (1 hr)= 90% complete
67 min=100% complete
Answer: It is an obtuse triangle I think beause more than one side is more than a 90 degree angle
Step-by-step explanation:
