Question

Kari and Samantha have determined that their water-balloon launcher works best when they launch the balloon at an angle within 3 degrees of 45 degrees. Which equation can be used to determine the minimum and maximum optimal angles of launch, and what is the minimum angle that is still optimal?

|x – 3| = 45; minimum angle: 42 degrees
|x – 3| = 45; minimum angle: 45 degrees
|x – 45| = 3; minimum angle: 42 degrees
|x – 45| = 3; minimum angle: 45 degrees

Answer 1

"within 3 degrees of 45 degrees"

for problems like this the general template is;

if X within A units of B, X can be described with the equation

| x - B | = A

where A is the "tolerance level" and B is the "target value"

try to apply this logic to your problem