80% of 20 is 80/100 x 20 = 16
So, kelly has used 16 stamps, and has 4 left
The correct answer would be B). For example:
As you can see there isn't a common difference between the values of y.
<h2>Answer- <u>
<em>3</em><em>3</em><em>9</em><em>1</em><em>.</em><em>2</em><em>mi</em><em>le</em></u></h2>
Step-by-step explanation:
Greetings !
Firstly, recall distance-speed equation
Given values:-
- speed(v)=15.7mile/hr
- time(t)=9days
required values:-
solution /work-out
But, first change the time from day to hour
Thus, 9days=216hours
plug in the given values and solve for the distance.
Hope it helps!
Let w represent width;
Length 5/2+2w
Perimeter=2(l+w)
P=2(5/2+w+w)
P=2(5/2+2w)
P=2*5/2+2*2w)
P=5+4w