Which of the following changes would make a heat engine less efficient
1 answer:
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Complete Question
The complete question is shown on the first uploaded image
Answer:
the value of
Explanation:
From the question we are told that
The equation is (x + y = 40)
The first value of x is
The second equation is (0.75x + 1.5y = 40)
So substituting
=>
Now substituting y and into second equation
=>
So
