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M=2N=P4=Q+8=R2>0M = 2N = \frac{P}{4} = Q + 8 = \frac{R}{2} > 0 Based on the statement above, which variable has the greatest value?\newlineA. MM\newlineB. PP\newlineC. QQ\newlineD. RR

Full solution

Q. M=2N=P4=Q+8=R2>0M = 2N = \frac{P}{4} = Q + 8 = \frac{R}{2} > 0 Based on the statement above, which variable has the greatest value?\newlineA. MM\newlineB. PP\newlineC. QQ\newlineD. RR
  1. Analyze Relationships: Let's analyze the given relationships between the variables:\newlineM=2N=P4=Q+8=R2>0M = 2N = \frac{P}{4} = Q + 8 = \frac{R}{2} > 0\newlineSince all expressions are equal to each other and greater than zero, we can compare them directly to find out which variable is the greatest.
  2. Compare MM and NN: First, let's compare MM and NN. Since M=2NM = 2N, and both MM and NN are greater than zero, NN must be half the value of MM. Therefore, MM is greater than NN.
  3. Compare M and P: Next, let's compare M and P. Since M=P4M = \frac{P}{4}, multiplying both sides by 44 gives us P=4MP = 4M. This means PP is four times greater than MM. Therefore, PP is greater than MM.
  4. Compare M and Q: Now, let's compare M and Q. Since M=Q+8M = Q + 8, and MM is greater than 00, QQ must be less than MM because we have to subtract 88 from MM to get QQ. Therefore, MM is greater than QQ.
  5. Compare M and R: Finally, let's compare M and R. Since M=R2M = \frac{R}{2}, multiplying both sides by 22 gives us R=2MR = 2M. This means RR is twice as large as MM. Therefore, RR is greater than MM.
  6. Final Comparison: Comparing all the variables, we find that PP is four times MM, and RR is twice MM, while NN and QQ are less than MM. Since PP is a multiple of 44 of MM and RR is a multiple of MM11 of MM, PP must be the greatest variable.

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