n = {2, 5, 0} holds true for 2n - 3 < 9
<em><u>Solution:</u></em>
Replacement set is the set of values that may be substituted for the variable.
Plug in each value from the replacement set and evaluate both sides of the inequality
If the inequality is true for a certain value, that value belongs in the solution set.
<em><u>Given equation is:</u></em>
2n - 3 < 9
<em><u>Substitute n = 2</u></em>
2(2) - 3 < 9
4 - 3 < 9
1 < 9
1 is less than 9 is true
Thus n = 2 is a solution to equation
<em><u>Substitute n = 5</u></em>
2(5) - 3 < 9
10 - 3 < 9
7 < 9
7 is less than 9 is true
Thus n = 5 is a solution to equation
<em><u>Substitute n = 0</u></em>
2(0) - 3 < 9
0 - 3 < 9
-3 < 9
-3 is less than 9 is true
Thus n = -3 is a solution to equation
$20 total cost
$8 fee
$2 per hour
20 (total) - 8 (initial fee) = 12 (amount spent on hourly use)
12 (amount spent on hourly use) / 2 (cost per hour) = 6 (hours)
20 - 8 = 12
12 / 2 = 6
ANSWER: 6 hours
I believe this is how you do it,
1.) Divide 25 by 100.
2.) Multiply it with $15.00.
3.) Add it to $15.00.
Hope this Helps :)
