Answer:
3/5
Step-by-step explanation:
Answer:
r=7
Step-by-step explanation:
-84+15r=3r
Subtract 15r from each side
-84+15r-15r=3r-15r
-84 = -12r
Divide each side by -12
-84/-12 = -12r/-12
7 = r
Answer:
6.2 units
Step-by-step explanation:
8^2 - 5^2 =39, square root of 39 is 6.2