Answer:
To solve one-step equations, we do the inverse (opposite) of whatever operation is being performed on the variable, so we get the variable by itself. The inverse operations are: Addition and subtraction. Multiplication and division.
Step-by-step explanation:
by it self.
d=19.6 km,r=9.8 km
USE equation for C
C=2rπ
19.6π=2rπ
19.6=2r
d=19.6 km
r=9.8 km
find the measure of J
180-45=135
find the measure of K
360-135=225
2 ≤ 5
-5 ≤ -2 add 7 to both sides
-5+7 ≤ -2+7 calculate