Question 97794
log xy =7 , log (x/y)= 10
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logx + logy = 7
logx - logy = 10
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Add the two equations to get:
2logx = 17
log x = 8.5
x = 10^8.5
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Substitute that into one of the equations with y and solve for y:
log(10^8.5) + log y = 7
8.5 + logy = 7
logy = 7-8.5
logy = -1.5
y = 10^(-1.5)
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Cheers,
Stan H.