Carcass wrote:
\(3(x – 7) \geq 9\)
\(0.25y – 3 \leq 1\)
Quantity A |
Quantity B |
\(x\) |
\(y\) |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Kudos for
R.A.EGiven: \(3(x – 7) \geq 9\)
Divide both sides of the inequality by \(3\) to get: \(x – 7 \geq 3\)
Add \(7\) to both sides to get: \(x \geq 10\)
Also given: \(0.25y – 3 \leq 1\)
Add \(3\) to both sides to get: \(0.25y \leq 4\)
Multiply both sides by \(4\) to get: \(y \leq 16\)
We now know that \(x \geq 10\) and \(y \leq 16\)
So, for example, it could be the case that x = 12 and y = 12, in which case
the two quantities are equalOr, it could be the case that x = 13 and y = 12, in which case
Quantity A is greaterAnswer: D
Cheers,
Brent
_________________
Brent Hanneson - founder of Greenlight Test Prep
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