Let l be length and w be width.
So the problem already gave you what a perimeter is, which is 2l + 2w.
Now it says perimeter is 28, so 2l + 2w = 28.
Then it says length is 2 more than twice its width, so l = 2w + 2.
Now substitute.
2(2w + 2) + 2w = 28
4w + 4 + 2w = 28
6w = 24
w = 4
Now substitute w back in l = 2w + 2
l = 2(4) + 2
l = 10
Answer:
x=27
Step-by-step explanation:
3=x/9
9*3=(x/9)*9
27=x
x=27
Multiply by 9 on both sides to get the x by itself because x(1/9)*9=x, and when you do something to one side of the equation you also have to do it to the other side.
Answer:
2.64cm
Step-by-step explanation:
A = π r^2
5.5 = π r^2
1.75 = r^2
r = 1.32
Diameter is then 2(1.32) = 2.64
Answer= 3/8 of a mile
3/4*1/2=3/8
Jesse walked 3/8 a mile this weekend
Answer:
-6.3x + 1.7
Step-by-step explanation:
(-3.4x +4.7) - (3 +2.9x)
distrubute the negitive sign
-3.4 +4.7 -3 -2.9x
combine like terms
-6.3x + 4.7-3
-6.3x +1.7