15/100 × 215 = 3225/100
= 32.25
i am a mathematics teacher. if anything to ask please pm me
8 x 2 + 6x + 5=0
16 + 6x + 5=0
6x+21=0
6x+21-21=0-21
6x=-21
6x/6=-21/6
x=-7/2
There was a total of 17.5 quarts of blood that was collected.
Hope this helps! :-)
I got radius= 54
arc/2pi r = degrees/360
then fill in what you know: 24pi/2pi r = 80/360
Now cross multiply and you get: 8640pi = 160pi r
Now divide both sides by 160pi and you get: 54= r
