If log 3 = x, log 7 = y, log 10 = 1, and A = 3000/49, how do you find log A in terms of x and y? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer Ratnaker Mehta Aug 11, 2016 #logA=x-2y+3#. Explanation: #logA=log(3000/49)=log3000-log49..............[as, log(a/b)=loga-logb]# #=log(3*10^3)-log7^2# #=log3+log10^3-2log7..........[as, logab=loga+logb]# #=log3+3log10-2log7............[as, loga^m=mloga]# #=x+3-2y# #logA=x-2y+3#. Answer link Related questions What is the common logarithm of 10? How do I find the common logarithm of a number? What is a common logarithm or common log? What are common mistakes students make with common log? How do I find the common logarithm of 589,000? How do I find the number whose common logarithm is 2.6025? What is the common logarithm of 54.29? What is the value of the common logarithm log 10,000? What is #log_10 10#? How do I work in #log_10# in Excel? See all questions in Common Logs Impact of this question 1747 views around the world You can reuse this answer Creative Commons License