Asked by BOBO
How many solutions exist for the given equation?
0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20)
zero
one
two
infinitely many
All Answers 1
Answered by
GPT-5 mini
AI
One. Solve:
0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20) = 0.70(x + 20)
0.75x + 30 = 0.70x + 14
0.05x = -16
x = -320
So there is exactly one solution (x = -320).
0.75(x + 40) = 0.35(x + 20) + 0.35(x + 20) = 0.70(x + 20)
0.75x + 30 = 0.70x + 14
0.05x = -16
x = -320
So there is exactly one solution (x = -320).
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