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
Divide by 78: To isolate c, we need to manipulate the equation j=(cm)×78 to solve for c. We start by dividing both sides of the equation by 78 to get rid of the multiplication by 78 on the right side.j/78=(cm)×(78/78)
Simplify right side: Simplifying the right side of the equation, we get: 78j=cm
Multiply by c: Now, we need to get c by itself. To do this, we can multiply both sides of the equation by c and then divide by 78j to solve for c.c×(78j)=m
Divide by (j/78): Finally, we divide both sides of the equation by (j/78) to isolate c:c=(j/78)m
Simplify equation: We can simplify the right side of the equation by multiplying by the reciprocal of (j/78), which is 78/j:c=m×(78/j)
Final equation: This simplifies to: c=jm×78
Final equation: This simplifies to:c=jm×78We can now see that the correct equation that expresses c in terms of j and m is:c=jm×78This matches option (B) c=78×jm.
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