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MATH

by namokshi » Fri Mar 27, 2020 5:59 am
If z=1+1/x where x>1, then z could equal to which of the following?
a. 1/5
b. 5/8
c. 9/7
d. 15.11
e. 8/7

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Re: MATH

by [email protected] » Sat Mar 28, 2020 3:26 pm
Hi namokshi,

From your post, I'm going to assume that the equation that you included is meant to be:

Z = 1 + (1/X) and X > 1

As X increases, the value of (1/X) decreases - so we'll be adding a potentially small fraction to 1. We can actually TEST THE ANSWERS here - and use the answer choices to our advantage (by considering the DENOMINATORS of each of the 5 answers). If X = 7, then we'd end up with Z = 1 + (1/7) = 8/7

Final Answer: E

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