Question

24 liam is a tester who specializes in semiconductors. he uses n to represent the target size in nanometers for the semiconductor in the phone chips he is testing. the specification is 26 < 2n + 6 < 34. solve the compound inequality.
25 graph the solution.
image of number line and graphing options omitted

Explanation:

Step1: Subtract 6 from all parts

$26 - 6 < 2n + 6 - 6 < 34 - 6$
$20 < 2n < 28$

Step2: Divide all parts by 2

$\frac{20}{2} < \frac{2n}{2} < \frac{28}{2}$
$10 < n < 14$

The solution is all numbers between 10 and 14, not including 10 and 14. On the number line, this is represented with open circles at 10 and 14, and a shaded line segment connecting the two open circles.

Answer:

$10 < n < 14$

For the graph (question 25):