Step-by-step explanation:
-3x + 27= -3
-3x = -3-27
-3x = -30
x= 10
The answer is 72
b/c 80% is equal to .80
so you do 90x.80
The value of 100th is 201
and the value of 1000th is 2001
Okay so you're trying to find the unit rate of 720yds/4min. If you divide 720 by 4 you will have the unit rate as 180yds/1 min or 60 sec then if you divide 180 and 60 by 4 again you will get the answer of 45yds/15sec.
