Question

neil is growing sugar crystals for his science fair experiment. he wants to find out if the amount of sugar affects the size of the crystal. neil adds 18 tablespoons of sugar to his first bowl of water. he plans to add less sugar to the second bowl. let s represent the amount of sugar, in tablespoons, neil might add to the second bowl of water. which inequality models the story?
$s > 18$
$s \geq 18$
$s < 18$
$s \leq 18$
graph the inequality that models the story.
to draw a ray, plot an endpoint and select an arrow. select an endpoint to change it from closed to open. select the middle of the ray to delete it.
(number line from 10 to 20 with ticks at 10,11,12,13,14,15,16,17,18,19,20)

Explanation:

Step1: Interpret the problem

Neil adds less than 18 tbsp of sugar to the second bowl, so \(s\) (sugar amount) is less than 18.

Step2: Match to inequality

The inequality for "less than 18" is \(s < 18\).

Step3: Graph setup

Plot an open endpoint at 18 (since \(s\) cannot equal 18), then draw a ray pointing left (toward values smaller than 18).

Answer:

The correct inequality is \(s < 18\). For the graph: plot an open circle at 18 on the number line, then draw an arrow pointing left from this open circle to represent all values less than 18.