X * 0,8 = 259,2 <=>
x = 258,2/0,8 <=>
x = 322,75
The total budget was 322,75$
About 3,000 books because 105 * 28 = 2940
and 2940 rounded to the nearest thousand is 3000. Hope this helps.
First use Pythagoras theorem to find the remaining length of the base.
Then multiply the base with the altitude and divide that by 2 and you'll get the area
Answer:
answers below.
Step-by-step explanation:
50+x+5+180-4x-10=180
225-3x=180
-3x=-45
x=15
m<B=20
m<ACB=110
m<ACD=70
Act like it's a whole circle and find the perimeter, then divide by 2.
P = 2 * pi * r
P = 2 * 3.14 * 9
P = 56.52
Now divide by 2:
P = 28.26
