stressedstudent101
30.08.2021 •
Mathematics
If ∠c ≅ ∠d, m∠c = 5x - 7, and m∠d = 3x + 25, how many degrees are in ∠c? Select the best answer from the choices provided. A. 9° B. 16° C. 52° D. 73°
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Ответ:
x+4x+x-7= 137
combine like terms
6x-7=137
isolate the variable by adding 7 to both sides
6x=144
divide
x=24
but remember, tin c is x-7 so plug the 24 in, and the answer is 17.