Q. j=cm⋅78Which of the following equations correctly expresses c in terms of j and m ?Choose 1 answer:(A) c=jm⋅78(B) c=78⋅jm(C) c=mj⋅78(D) c=78⋅mj
Given Equation: Given the equation j=cm×78, we want to solve for c in terms of j and m.
Divide by 78: To isolate c, we need to get rid of the 78 that is being multiplied by m/c. We can do this by dividing both sides of the equation by 78.78j=78(m/c)×78
Simplify Right Side: Simplifying the right side of the equation, we get: 78j=cm
Take Reciprocal: Now, to solve for c, we need to take the reciprocal of both sides of the equation. This will give us c on one side by itself.c=(78j)m
Simplify Right Side: We can simplify the right side of the equation by multiplying m by the reciprocal of 78j, which is j78.c=m×(j78)
Rewrite Equation: Finally, we can rewrite the equation to match the format of the answer choices: c=jm×78
Final Equation: Comparing our final equation with the answer choices, we see that it matches with choice (B): c=78×jm
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