sandy wrote:

x > 0

Quantity A: (590+x)/800

Quantity B: (600+x)/790

Two nice rules concerning fractions with positive numerators and denominators:

1) Making a numerator bigger makes the fraction bigger.

2) Making a denominator smaller makes the fraction bigger.

So, from rule number 1, we can see that (600+x)/800 is GREATER THAN (590+x)/800

In other words,

(600+x)/800 > (590+x)/800From rule number 2, we can see that (600+x)/790 is GREATER THAN (600+x)/800

In other words,

(600+x)/790 > (600+x)/800Combine the inequalities to get:

(600+x)/790 > (600+x)/800 > (590+x)/800So, we can be certain that

(600+x)/790 > (590+x)/800Cheers,

Brent

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Brent Hanneson – Creator of greenlighttestprep.com

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