Answer:
l= (P-2w)/2
Step-by-step explanation:
P = 2l + 2w
Subtractc 2w both sides
P-2w = 2l
Divide 2 both sides
(P-2w)/2 = l
Hope this helps!
Answer:
22 millilitres of 13% solution
23 millilitres of 19% solution
Step-by-step explanation:
A + B = 45
13A + 19B = 45 x 17 = 765
-13A - 13B + 13A + 19B = -650 + 765 = 115
5B = 115
B = 23
22 + 23 = 45
A = 22
1021 / 5 = 204.20.....each girl got 204 stickers.....with a remainder of 1 sticker
3 goes into both 3x and 18
Answer:
Step-by-step explanation:
Since it is a square, all four sides are equal and its perimeter is just
P=4s, so if P=8 then
4s=8, dividing each side by 4 we get
s=2
So each side of the plastic square is 2 centimeters.
