Answer:
42$
Step-by-step explanation:
So there's an easy way to know this.
100%--$70
60%--x
<em>cross multiply </em>
100x=4200
÷100 ÷100
______________
x=42
So he saved 42$. Hope this helps :D
Ratio of width to length: W/L = 3/5
5W = 3L .........(a)
Perimeter = 2*(L+W) = 80
2*(L+W) = 80
(L+W) = 80/2. Divide both sides by 2.
L+W= 40......(b)
5W = 3L
L + W = 40 Multiply both sides by 5.
5*(L+W) = 5*40
5L+5W = 200. Recall from (a) 5W = 3L
5L + 3L = 200
8L = 200
L = 200/8
L = 25.
5W = 3L
5W = 3*25
W = 3*25/5
W = 15.
Therefore, the length, L = 25 and width , W = 15.
1. X=55
2. X=4
3. X=6
4. X=8
Answer:
mean=sum of all observations/no.of observations
mean =23+15+6+5+6/5
mean=55/5
mean=11
population mean =11
hope this answer helps
Answer:
Basketball court is half mile away and the distance between pool and basketball court is 1 mile.
