1 full revolution=360
4seconds=360degrees
how many seconds is 90 degrees
4:360=x:90
4/360=x/90
simpllfiy
1/90=x/90
1=x
answer is 1 second
Answer:it’s 19 inches and 60 inches.
Step-by-step explanation:
The formula for density = number/ area
In this case number=20
area = 5m^2
Density = 20/5=4 mice per m^2
The right answer is <span>A. 4 per m2</span>
Make a guess and check table to figure out if you do not know it off the top of your head.
The answer is 7 and 7
