Question

The minimum and maximum temperature for a day in Cupcake Town can be modeled by the equation below:

3|x − 8| + 15 = 18

What are the minimum and maximum temperatures for this day?

x = 1, x = 17

x = −7, x = 9

x = 7 x = 9

No solution

Answer 1

@Night-Watcher

Answer 2

3 | x - 8 | + 15 = 18 --- subtract 15 from both sides
3 | x - 8 | = 3 --- divide both sides by 3
| x - 8 | = 1

(x - 8) = 1
x = 1 + 8
x = 9

-(x - 8) = 1
-x + 8 = 1
-x = -7
x = 7

x = 9 and x = 7

Answer 3

@texaschic101 knows his stuff. :)