Question

practice problems
determine which inequality is true when y = 15.
a. 15y > 225
b. 15y < 225
c. \\(\frac{y}{15} \geq 1\\)
d. \\(\frac{y}{1} \leq 1\\)

Explanation:

Step1: Substitute $y=15$ into A

$15(15) = 225$; $225 > 225$ is false.

Step2: Substitute $y=15$ into B

$15(15) = 225$; $225 < 225$ is false.

Step3: Substitute $y=15$ into C

$\frac{15}{15} = 1$; $1 \geq 1$ is true.

Step4: Substitute $y=15$ into D

$\frac{15}{1} = 15$; $15 \leq 1$ is false.

Answer:

C. $\frac{y}{15} \geq 1$